64950890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{209519}}^1$

素因数の和:209557

約数の個数: 16

約数和(自身を含む): 120683520

約数和(自身を除く): 55732630

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 209519, 419038, 1047595, 2095190, 6495089, 12990178, 32475445, 64950890]

約数ペア:

[(1, 64950890), (2, 32475445), (5, 12990178), (10, 6495089), (31, 2095190), (62, 1047595), (155, 419038), (310, 209519)]