1640281920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{55117}}^1$

素因数の和:55168

約数の個数: 112

約数和(自身を含む): 5375989248

約数和(自身を除く): 3735707328

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 155, 160, 186, 192, 240, 248, 310, 320, 372, 465, 480, 496, 620, 744, 930, 960, 992, 1240, 1488, 1860, 1984, 2480, 2976, 3720, 4960, 5952, 7440, 9920, 14880, 29760, 55117, 110234, 165351, 220468, 275585, 330702, 440936, 551170, 661404, 826755, 881872, 1102340, 1322808, 1653510, 1708627, 1763744, 2204680, 2645616, 3307020, 3417254, 3527488, 4409360, 5125881, 5291232, 6614040, 6834508, 8543135, 8818720, 10251762, 10582464, 13228080, 13669016, 17086270, 17637440, 20503524, 25629405, 26456160, 27338032, 34172540, 41007048, 51258810, 52912320, 54676064, 68345080, 82014096, 102517620, 109352128, 136690160, 164028192, 205035240, 273380320, 328056384, 410070480, 546760640, 820140960, 1640281920]

約数ペア:

[(1, 1640281920), (2, 820140960), (3, 546760640), (4, 410070480), (5, 328056384), (6, 273380320), (8, 205035240), (10, 164028192), (12, 136690160), (15, 109352128), (16, 102517620), (20, 82014096), (24, 68345080), (30, 54676064), (31, 52912320), (32, 51258810), (40, 41007048), (48, 34172540), (60, 27338032), (62, 26456160), (64, 25629405), (80, 20503524), (93, 17637440), (96, 17086270), (120, 13669016), (124, 13228080), (155, 10582464), (160, 10251762), (186, 8818720), (192, 8543135), (240, 6834508), (248, 6614040), (310, 5291232), (320, 5125881), (372, 4409360), (465, 3527488), (480, 3417254), (496, 3307020), (620, 2645616), (744, 2204680), (930, 1763744), (960, 1708627), (992, 1653510), (1240, 1322808), (1488, 1102340), (1860, 881872), (1984, 826755), (2480, 661404), (2976, 551170), (3720, 440936), (4960, 330702), (5952, 275585), (7440, 220468), (9920, 165351), (14880, 110234), (29760, 55117)]