128397720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{461}}^1$

素因数の和:697

約数の個数: 128

約数和(自身を含む): 423118080

約数和(自身を除く): 294720360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 211, 220, 264, 330, 422, 440, 461, 633, 660, 844, 922, 1055, 1266, 1320, 1383, 1688, 1844, 2110, 2305, 2321, 2532, 2766, 3165, 3688, 4220, 4610, 4642, 5064, 5071, 5532, 6330, 6915, 6963, 8440, 9220, 9284, 10142, 11064, 11605, 12660, 13830, 13926, 15213, 18440, 18568, 20284, 23210, 25320, 25355, 27660, 27852, 30426, 34815, 40568, 46420, 50710, 55320, 55704, 60852, 69630, 76065, 92840, 97271, 101420, 121704, 139260, 152130, 194542, 202840, 278520, 291813, 304260, 389084, 486355, 583626, 608520, 778168, 972710, 1069981, 1167252, 1459065, 1945420, 2139962, 2334504, 2918130, 3209943, 3890840, 4279924, 5349905, 5836260, 6419886, 8559848, 10699810, 11672520, 12839772, 16049715, 21399620, 25679544, 32099430, 42799240, 64198860, 128397720]

約数ペア:

[(1, 128397720), (2, 64198860), (3, 42799240), (4, 32099430), (5, 25679544), (6, 21399620), (8, 16049715), (10, 12839772), (11, 11672520), (12, 10699810), (15, 8559848), (20, 6419886), (22, 5836260), (24, 5349905), (30, 4279924), (33, 3890840), (40, 3209943), (44, 2918130), (55, 2334504), (60, 2139962), (66, 1945420), (88, 1459065), (110, 1167252), (120, 1069981), (132, 972710), (165, 778168), (211, 608520), (220, 583626), (264, 486355), (330, 389084), (422, 304260), (440, 291813), (461, 278520), (633, 202840), (660, 194542), (844, 152130), (922, 139260), (1055, 121704), (1266, 101420), (1320, 97271), (1383, 92840), (1688, 76065), (1844, 69630), (2110, 60852), (2305, 55704), (2321, 55320), (2532, 50710), (2766, 46420), (3165, 40568), (3688, 34815), (4220, 30426), (4610, 27852), (4642, 27660), (5064, 25355), (5071, 25320), (5532, 23210), (6330, 20284), (6915, 18568), (6963, 18440), (8440, 15213), (9220, 13926), (9284, 13830), (10142, 12660), (11064, 11605)]