31999740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 93434880

約数和(自身を除く): 61435140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 79, 86, 129, 157, 158, 172, 215, 237, 258, 314, 316, 395, 430, 471, 474, 516, 628, 645, 785, 790, 860, 942, 948, 1185, 1290, 1570, 1580, 1884, 2355, 2370, 2580, 3140, 3397, 4710, 4740, 6751, 6794, 9420, 10191, 12403, 13502, 13588, 16985, 20253, 20382, 24806, 27004, 33755, 33970, 37209, 40506, 40764, 49612, 50955, 62015, 67510, 67940, 74418, 81012, 101265, 101910, 124030, 135020, 148836, 186045, 202530, 203820, 248060, 372090, 405060, 533329, 744180, 1066658, 1599987, 2133316, 2666645, 3199974, 5333290, 6399948, 7999935, 10666580, 15999870, 31999740]

約数ペア:

[(1, 31999740), (2, 15999870), (3, 10666580), (4, 7999935), (5, 6399948), (6, 5333290), (10, 3199974), (12, 2666645), (15, 2133316), (20, 1599987), (30, 1066658), (43, 744180), (60, 533329), (79, 405060), (86, 372090), (129, 248060), (157, 203820), (158, 202530), (172, 186045), (215, 148836), (237, 135020), (258, 124030), (314, 101910), (316, 101265), (395, 81012), (430, 74418), (471, 67940), (474, 67510), (516, 62015), (628, 50955), (645, 49612), (785, 40764), (790, 40506), (860, 37209), (942, 33970), (948, 33755), (1185, 27004), (1290, 24806), (1570, 20382), (1580, 20253), (1884, 16985), (2355, 13588), (2370, 13502), (2580, 12403), (3140, 10191), (3397, 9420), (4710, 6794), (4740, 6751)]