978171380

素因数分解:

$2^2\times 5^1\times {\mathrm{13151}}^1\times {\mathrm{3719}}^1$

素因数の和:16879

約数の個数: 24

約数和(自身を含む): 2054868480

約数和(自身を除く): 1076697100

約数列:

[1, 2, 4, 5, 10, 20, 3719, 7438, 13151, 14876, 18595, 26302, 37190, 52604, 65755, 74380, 131510, 263020, 48908569, 97817138, 195634276, 244542845, 489085690, 978171380]

約数ペア:

[(1, 978171380), (2, 489085690), (4, 244542845), (5, 195634276), (10, 97817138), (20, 48908569), (3719, 263020), (7438, 131510), (13151, 74380), (14876, 65755), (18595, 52604), (26302, 37190)]