123455640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:494

約数の個数: 256

約数和(自身を含む): 477757440

約数和(自身を除く): 354301800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 31, 33, 35, 40, 42, 44, 55, 56, 60, 62, 66, 70, 77, 84, 88, 93, 105, 110, 120, 124, 132, 140, 154, 155, 165, 168, 186, 210, 217, 220, 231, 248, 264, 280, 308, 310, 330, 341, 372, 385, 420, 431, 434, 440, 462, 465, 616, 620, 651, 660, 682, 744, 770, 840, 862, 868, 924, 930, 1023, 1085, 1155, 1240, 1293, 1302, 1320, 1364, 1540, 1705, 1724, 1736, 1848, 1860, 2046, 2155, 2170, 2310, 2387, 2586, 2604, 2728, 3017, 3080, 3255, 3410, 3448, 3720, 4092, 4310, 4340, 4620, 4741, 4774, 5115, 5172, 5208, 6034, 6465, 6510, 6820, 7161, 8184, 8620, 8680, 9051, 9240, 9482, 9548, 10230, 10344, 11935, 12068, 12930, 13020, 13361, 13640, 14223, 14322, 15085, 17240, 18102, 18964, 19096, 20460, 23705, 23870, 24136, 25860, 26040, 26722, 28446, 28644, 30170, 33187, 35805, 36204, 37928, 40083, 40920, 45255, 47410, 47740, 51720, 53444, 56892, 57288, 60340, 66374, 66805, 71115, 71610, 72408, 80166, 90510, 93527, 94820, 95480, 99561, 106888, 113784, 120680, 132748, 133610, 142230, 143220, 146971, 160332, 165935, 181020, 187054, 189640, 199122, 200415, 265496, 267220, 280581, 284460, 286440, 293942, 320664, 331870, 362040, 374108, 398244, 400830, 440913, 467635, 497805, 534440, 561162, 568920, 587884, 663740, 734855, 748216, 796488, 801660, 881826, 935270, 995610, 1028797, 1122324, 1175768, 1327480, 1402905, 1469710, 1603320, 1763652, 1870540, 1991220, 2057594, 2204565, 2244648, 2805810, 2939420, 3086391, 3527304, 3741080, 3982440, 4115188, 4409130, 5143985, 5611620, 5878840, 6172782, 8230376, 8818260, 10287970, 11223240, 12345564, 15431955, 17636520, 20575940, 24691128, 30863910, 41151880, 61727820, 123455640]

約数ペア:

[(1, 123455640), (2, 61727820), (3, 41151880), (4, 30863910), (5, 24691128), (6, 20575940), (7, 17636520), (8, 15431955), (10, 12345564), (11, 11223240), (12, 10287970), (14, 8818260), (15, 8230376), (20, 6172782), (21, 5878840), (22, 5611620), (24, 5143985), (28, 4409130), (30, 4115188), (31, 3982440), (33, 3741080), (35, 3527304), (40, 3086391), (42, 2939420), (44, 2805810), (55, 2244648), (56, 2204565), (60, 2057594), (62, 1991220), (66, 1870540), (70, 1763652), (77, 1603320), (84, 1469710), (88, 1402905), (93, 1327480), (105, 1175768), (110, 1122324), (120, 1028797), (124, 995610), (132, 935270), (140, 881826), (154, 801660), (155, 796488), (165, 748216), (168, 734855), (186, 663740), (210, 587884), (217, 568920), (220, 561162), (231, 534440), (248, 497805), (264, 467635), (280, 440913), (308, 400830), (310, 398244), (330, 374108), (341, 362040), (372, 331870), (385, 320664), (420, 293942), (431, 286440), (434, 284460), (440, 280581), (462, 267220), (465, 265496), (616, 200415), (620, 199122), (651, 189640), (660, 187054), (682, 181020), (744, 165935), (770, 160332), (840, 146971), (862, 143220), (868, 142230), (924, 133610), (930, 132748), (1023, 120680), (1085, 113784), (1155, 106888), (1240, 99561), (1293, 95480), (1302, 94820), (1320, 93527), (1364, 90510), (1540, 80166), (1705, 72408), (1724, 71610), (1736, 71115), (1848, 66805), (1860, 66374), (2046, 60340), (2155, 57288), (2170, 56892), (2310, 53444), (2387, 51720), (2586, 47740), (2604, 47410), (2728, 45255), (3017, 40920), (3080, 40083), (3255, 37928), (3410, 36204), (3448, 35805), (3720, 33187), (4092, 30170), (4310, 28644), (4340, 28446), (4620, 26722), (4741, 26040), (4774, 25860), (5115, 24136), (5172, 23870), (5208, 23705), (6034, 20460), (6465, 19096), (6510, 18964), (6820, 18102), (7161, 17240), (8184, 15085), (8620, 14322), (8680, 14223), (9051, 13640), (9240, 13361), (9482, 13020), (9548, 12930), (10230, 12068), (10344, 11935)]