2721180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:80

約数の個数: 192

約数和(自身を含む): 10321920

約数和(自身を除く): 7600740

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 19, 20, 21, 22, 28, 30, 31, 33, 35, 38, 42, 44, 55, 57, 60, 62, 66, 70, 76, 77, 84, 93, 95, 105, 110, 114, 124, 132, 133, 140, 154, 155, 165, 186, 190, 209, 210, 217, 220, 228, 231, 266, 285, 308, 310, 330, 341, 372, 380, 385, 399, 418, 420, 434, 462, 465, 532, 570, 589, 620, 627, 651, 660, 665, 682, 770, 798, 836, 868, 924, 930, 1023, 1045, 1085, 1140, 1155, 1178, 1254, 1302, 1330, 1364, 1463, 1540, 1596, 1705, 1767, 1860, 1995, 2046, 2090, 2170, 2310, 2356, 2387, 2508, 2604, 2660, 2926, 2945, 3135, 3255, 3410, 3534, 3990, 4092, 4123, 4180, 4340, 4389, 4620, 4774, 5115, 5852, 5890, 6270, 6479, 6510, 6820, 7068, 7161, 7315, 7980, 8246, 8778, 8835, 9548, 10230, 11780, 11935, 12369, 12540, 12958, 13020, 14322, 14630, 16492, 17556, 17670, 19437, 20460, 20615, 21945, 23870, 24738, 25916, 28644, 29260, 32395, 35340, 35805, 38874, 41230, 43890, 45353, 47740, 49476, 61845, 64790, 71610, 77748, 82460, 87780, 90706, 97185, 123690, 129580, 136059, 143220, 181412, 194370, 226765, 247380, 272118, 388740, 453530, 544236, 680295, 907060, 1360590, 2721180]

約数ペア:

[(1, 2721180), (2, 1360590), (3, 907060), (4, 680295), (5, 544236), (6, 453530), (7, 388740), (10, 272118), (11, 247380), (12, 226765), (14, 194370), (15, 181412), (19, 143220), (20, 136059), (21, 129580), (22, 123690), (28, 97185), (30, 90706), (31, 87780), (33, 82460), (35, 77748), (38, 71610), (42, 64790), (44, 61845), (55, 49476), (57, 47740), (60, 45353), (62, 43890), (66, 41230), (70, 38874), (76, 35805), (77, 35340), (84, 32395), (93, 29260), (95, 28644), (105, 25916), (110, 24738), (114, 23870), (124, 21945), (132, 20615), (133, 20460), (140, 19437), (154, 17670), (155, 17556), (165, 16492), (186, 14630), (190, 14322), (209, 13020), (210, 12958), (217, 12540), (220, 12369), (228, 11935), (231, 11780), (266, 10230), (285, 9548), (308, 8835), (310, 8778), (330, 8246), (341, 7980), (372, 7315), (380, 7161), (385, 7068), (399, 6820), (418, 6510), (420, 6479), (434, 6270), (462, 5890), (465, 5852), (532, 5115), (570, 4774), (589, 4620), (620, 4389), (627, 4340), (651, 4180), (660, 4123), (665, 4092), (682, 3990), (770, 3534), (798, 3410), (836, 3255), (868, 3135), (924, 2945), (930, 2926), (1023, 2660), (1045, 2604), (1085, 2508), (1140, 2387), (1155, 2356), (1178, 2310), (1254, 2170), (1302, 2090), (1330, 2046), (1364, 1995), (1463, 1860), (1540, 1767), (1596, 1705)]