87406760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{641}}^1$

素因数の和:1146

約数の個数: 64

約数和(自身を含む): 225573120

約数和(自身を除く): 138166360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 487, 641, 974, 1282, 1948, 2435, 2564, 3205, 3409, 3896, 4487, 4870, 5128, 6410, 6818, 8974, 9740, 12820, 13636, 17045, 17948, 19480, 22435, 25640, 27272, 34090, 35896, 44870, 68180, 89740, 136360, 179480, 312167, 624334, 1248668, 1560835, 2185169, 2497336, 3121670, 4370338, 6243340, 8740676, 10925845, 12486680, 17481352, 21851690, 43703380, 87406760]

約数ペア:

[(1, 87406760), (2, 43703380), (4, 21851690), (5, 17481352), (7, 12486680), (8, 10925845), (10, 8740676), (14, 6243340), (20, 4370338), (28, 3121670), (35, 2497336), (40, 2185169), (56, 1560835), (70, 1248668), (140, 624334), (280, 312167), (487, 179480), (641, 136360), (974, 89740), (1282, 68180), (1948, 44870), (2435, 35896), (2564, 34090), (3205, 27272), (3409, 25640), (3896, 22435), (4487, 19480), (4870, 17948), (5128, 17045), (6410, 13636), (6818, 12820), (8974, 9740)]