18863690

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:518

約数の個数: 32

約数和(自身を含む): 35138880

約数和(自身を除く): 16275190

約数列:

[1, 2, 5, 10, 41, 82, 139, 205, 278, 331, 410, 662, 695, 1390, 1655, 3310, 5699, 11398, 13571, 27142, 28495, 46009, 56990, 67855, 92018, 135710, 230045, 460090, 1886369, 3772738, 9431845, 18863690]

約数ペア:

[(1, 18863690), (2, 9431845), (5, 3772738), (10, 1886369), (41, 460090), (82, 230045), (139, 135710), (205, 92018), (278, 67855), (331, 56990), (410, 46009), (662, 28495), (695, 27142), (1390, 13571), (1655, 11398), (3310, 5699)]