25996880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3571}}^1$

素因数の和:3604

約数の個数: 80

約数和(自身を含む): 74411904

約数和(自身を除く): 48415024

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3571, 3640, 7142, 7280, 14284, 17855, 24997, 28568, 35710, 46423, 49994, 57136, 71420, 92846, 99988, 124985, 142840, 185692, 199976, 232115, 249970, 285680, 324961, 371384, 399952, 464230, 499940, 649922, 742768, 928460, 999880, 1299844, 1624805, 1856920, 1999760, 2599688, 3249610, 3713840, 5199376, 6499220, 12998440, 25996880]

約数ペア:

[(1, 25996880), (2, 12998440), (4, 6499220), (5, 5199376), (7, 3713840), (8, 3249610), (10, 2599688), (13, 1999760), (14, 1856920), (16, 1624805), (20, 1299844), (26, 999880), (28, 928460), (35, 742768), (40, 649922), (52, 499940), (56, 464230), (65, 399952), (70, 371384), (80, 324961), (91, 285680), (104, 249970), (112, 232115), (130, 199976), (140, 185692), (182, 142840), (208, 124985), (260, 99988), (280, 92846), (364, 71420), (455, 57136), (520, 49994), (560, 46423), (728, 35710), (910, 28568), (1040, 24997), (1456, 17855), (1820, 14284), (3571, 7280), (3640, 7142)]