31198960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:386

約数の個数: 80

約数和(自身を含む): 79057440

約数和(自身を除く): 47858480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 131, 208, 229, 260, 262, 458, 520, 524, 655, 916, 1040, 1048, 1145, 1310, 1703, 1832, 2096, 2290, 2620, 2977, 3406, 3664, 4580, 5240, 5954, 6812, 8515, 9160, 10480, 11908, 13624, 14885, 17030, 18320, 23816, 27248, 29770, 29999, 34060, 47632, 59540, 59998, 68120, 119080, 119996, 136240, 149995, 238160, 239992, 299990, 389987, 479984, 599980, 779974, 1199960, 1559948, 1949935, 2399920, 3119896, 3899870, 6239792, 7799740, 15599480, 31198960]

約数ペア:

[(1, 31198960), (2, 15599480), (4, 7799740), (5, 6239792), (8, 3899870), (10, 3119896), (13, 2399920), (16, 1949935), (20, 1559948), (26, 1199960), (40, 779974), (52, 599980), (65, 479984), (80, 389987), (104, 299990), (130, 239992), (131, 238160), (208, 149995), (229, 136240), (260, 119996), (262, 119080), (458, 68120), (520, 59998), (524, 59540), (655, 47632), (916, 34060), (1040, 29999), (1048, 29770), (1145, 27248), (1310, 23816), (1703, 18320), (1832, 17030), (2096, 14885), (2290, 13624), (2620, 11908), (2977, 10480), (3406, 9160), (3664, 8515), (4580, 6812), (5240, 5954)]