85406020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{87149}}^1$

素因数の和:87172

約数の個数: 36

約数和(自身を含む): 208637100

約数和(自身を除く): 123231080

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 87149, 174298, 348596, 435745, 610043, 871490, 1220086, 1742980, 2440172, 3050215, 4270301, 6100430, 8540602, 12200860, 17081204, 21351505, 42703010, 85406020]

約数ペア:

[(1, 85406020), (2, 42703010), (4, 21351505), (5, 17081204), (7, 12200860), (10, 8540602), (14, 6100430), (20, 4270301), (28, 3050215), (35, 2440172), (49, 1742980), (70, 1220086), (98, 871490), (140, 610043), (196, 435745), (245, 348596), (490, 174298), (980, 87149)]