87072020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{3863}}^1$

素因数の和:3909

約数の個数: 72

約数和(自身を含む): 222009984

約数和(自身を除く): 134937964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 2254, 3220, 3863, 4508, 5635, 7726, 11270, 15452, 19315, 22540, 27041, 38630, 54082, 77260, 88849, 108164, 135205, 177698, 189287, 270410, 355396, 378574, 444245, 540820, 621943, 757148, 888490, 946435, 1243886, 1776980, 1892870, 2487772, 3109715, 3785740, 4353601, 6219430, 8707202, 12438860, 17414404, 21768005, 43536010, 87072020]

約数ペア:

[(1, 87072020), (2, 43536010), (4, 21768005), (5, 17414404), (7, 12438860), (10, 8707202), (14, 6219430), (20, 4353601), (23, 3785740), (28, 3109715), (35, 2487772), (46, 1892870), (49, 1776980), (70, 1243886), (92, 946435), (98, 888490), (115, 757148), (140, 621943), (161, 540820), (196, 444245), (230, 378574), (245, 355396), (322, 270410), (460, 189287), (490, 177698), (644, 135205), (805, 108164), (980, 88849), (1127, 77260), (1610, 54082), (2254, 38630), (3220, 27041), (3863, 22540), (4508, 19315), (5635, 15452), (7726, 11270)]