1639403880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{75479}}^1$

素因数の和:75674

約数の個数: 64

約数和(自身を含む): 4945449600

約数和(自身を除く): 3306045720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 181, 362, 543, 724, 905, 1086, 1448, 1810, 2172, 2715, 3620, 4344, 5430, 7240, 10860, 21720, 75479, 150958, 226437, 301916, 377395, 452874, 603832, 754790, 905748, 1132185, 1509580, 1811496, 2264370, 3019160, 4528740, 9057480, 13661699, 27323398, 40985097, 54646796, 68308495, 81970194, 109293592, 136616990, 163940388, 204925485, 273233980, 327880776, 409850970, 546467960, 819701940, 1639403880]

約数ペア:

[(1, 1639403880), (2, 819701940), (3, 546467960), (4, 409850970), (5, 327880776), (6, 273233980), (8, 204925485), (10, 163940388), (12, 136616990), (15, 109293592), (20, 81970194), (24, 68308495), (30, 54646796), (40, 40985097), (60, 27323398), (120, 13661699), (181, 9057480), (362, 4528740), (543, 3019160), (724, 2264370), (905, 1811496), (1086, 1509580), (1448, 1132185), (1810, 905748), (2172, 754790), (2715, 603832), (3620, 452874), (4344, 377395), (5430, 301916), (7240, 226437), (10860, 150958), (21720, 75479)]