81151490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37397}}^1$

素因数の和:37442

約数の個数: 32

約数和(自身を含む): 172329984

約数和(自身を除く): 91178494

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 37397, 74794, 186985, 261779, 373970, 523558, 1159307, 1308895, 2318614, 2617790, 5796535, 8115149, 11593070, 16230298, 40575745, 81151490]

約数ペア:

[(1, 81151490), (2, 40575745), (5, 16230298), (7, 11593070), (10, 8115149), (14, 5796535), (31, 2617790), (35, 2318614), (62, 1308895), (70, 1159307), (155, 523558), (217, 373970), (310, 261779), (434, 186985), (1085, 74794), (2170, 37397)]