257283180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{977}}^1$

素因数の和:1029

約数の個数: 288

約数和(自身を含む): 1025256960

約数和(自身を除く): 767973780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 19, 20, 21, 22, 28, 30, 33, 35, 36, 38, 42, 44, 45, 55, 57, 60, 63, 66, 70, 76, 77, 84, 90, 95, 99, 105, 110, 114, 126, 132, 133, 140, 154, 165, 171, 180, 190, 198, 209, 210, 220, 228, 231, 252, 266, 285, 308, 315, 330, 342, 380, 385, 396, 399, 418, 420, 462, 495, 532, 570, 627, 630, 660, 665, 684, 693, 770, 798, 836, 855, 924, 977, 990, 1045, 1140, 1155, 1197, 1254, 1260, 1330, 1386, 1463, 1540, 1596, 1710, 1881, 1954, 1980, 1995, 2090, 2310, 2394, 2508, 2660, 2772, 2926, 2931, 3135, 3420, 3465, 3762, 3908, 3990, 4180, 4389, 4620, 4788, 4885, 5852, 5862, 5985, 6270, 6839, 6930, 7315, 7524, 7980, 8778, 8793, 9405, 9770, 10747, 11724, 11970, 12540, 13167, 13678, 13860, 14630, 14655, 17556, 17586, 18563, 18810, 19540, 20517, 21494, 21945, 23940, 26334, 27356, 29260, 29310, 32241, 34195, 35172, 37126, 37620, 41034, 42988, 43890, 43965, 52668, 53735, 55689, 58620, 61551, 64482, 65835, 68390, 74252, 75229, 82068, 87780, 87930, 92815, 96723, 102585, 107470, 111378, 123102, 128964, 129941, 131670, 136780, 150458, 161205, 167067, 175860, 185630, 193446, 204193, 205170, 214940, 222756, 225687, 246204, 259882, 263340, 278445, 300916, 307755, 322410, 334134, 371260, 376145, 386892, 389823, 408386, 410340, 451374, 483615, 519764, 556890, 612579, 615510, 644820, 649705, 668268, 677061, 752290, 779646, 816772, 835335, 902748, 967230, 1020965, 1113780, 1128435, 1169469, 1225158, 1231020, 1299410, 1354122, 1429351, 1504580, 1559292, 1670670, 1837737, 1934460, 1949115, 2041930, 2256870, 2338938, 2450316, 2598820, 2708244, 2858702, 3062895, 3341340, 3385305, 3675474, 3898230, 4083860, 4288053, 4513740, 4677876, 5717404, 5847345, 6125790, 6770610, 7146755, 7350948, 7796460, 8576106, 9188685, 11694690, 12251580, 12864159, 13541220, 14293510, 17152212, 18377370, 21440265, 23389380, 25728318, 28587020, 36754740, 42880530, 51456636, 64320795, 85761060, 128641590, 257283180]

約数ペア:

[(1, 257283180), (2, 128641590), (3, 85761060), (4, 64320795), (5, 51456636), (6, 42880530), (7, 36754740), (9, 28587020), (10, 25728318), (11, 23389380), (12, 21440265), (14, 18377370), (15, 17152212), (18, 14293510), (19, 13541220), (20, 12864159), (21, 12251580), (22, 11694690), (28, 9188685), (30, 8576106), (33, 7796460), (35, 7350948), (36, 7146755), (38, 6770610), (42, 6125790), (44, 5847345), (45, 5717404), (55, 4677876), (57, 4513740), (60, 4288053), (63, 4083860), (66, 3898230), (70, 3675474), (76, 3385305), (77, 3341340), (84, 3062895), (90, 2858702), (95, 2708244), (99, 2598820), (105, 2450316), (110, 2338938), (114, 2256870), (126, 2041930), (132, 1949115), (133, 1934460), (140, 1837737), (154, 1670670), (165, 1559292), (171, 1504580), (180, 1429351), (190, 1354122), (198, 1299410), (209, 1231020), (210, 1225158), (220, 1169469), (228, 1128435), (231, 1113780), (252, 1020965), (266, 967230), (285, 902748), (308, 835335), (315, 816772), (330, 779646), (342, 752290), (380, 677061), (385, 668268), (396, 649705), (399, 644820), (418, 615510), (420, 612579), (462, 556890), (495, 519764), (532, 483615), (570, 451374), (627, 410340), (630, 408386), (660, 389823), (665, 386892), (684, 376145), (693, 371260), (770, 334134), (798, 322410), (836, 307755), (855, 300916), (924, 278445), (977, 263340), (990, 259882), (1045, 246204), (1140, 225687), (1155, 222756), (1197, 214940), (1254, 205170), (1260, 204193), (1330, 193446), (1386, 185630), (1463, 175860), (1540, 167067), (1596, 161205), (1710, 150458), (1881, 136780), (1954, 131670), (1980, 129941), (1995, 128964), (2090, 123102), (2310, 111378), (2394, 107470), (2508, 102585), (2660, 96723), (2772, 92815), (2926, 87930), (2931, 87780), (3135, 82068), (3420, 75229), (3465, 74252), (3762, 68390), (3908, 65835), (3990, 64482), (4180, 61551), (4389, 58620), (4620, 55689), (4788, 53735), (4885, 52668), (5852, 43965), (5862, 43890), (5985, 42988), (6270, 41034), (6839, 37620), (6930, 37126), (7315, 35172), (7524, 34195), (7980, 32241), (8778, 29310), (8793, 29260), (9405, 27356), (9770, 26334), (10747, 23940), (11724, 21945), (11970, 21494), (12540, 20517), (13167, 19540), (13678, 18810), (13860, 18563), (14630, 17586), (14655, 17556)]