9972640

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{397}}^1$

素因数の和:569

約数の個数: 48

約数和(自身を含む): 23770152

約数和(自身を除く): 13797512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 314, 397, 628, 785, 794, 1256, 1570, 1588, 1985, 2512, 3140, 3176, 3970, 5024, 6280, 6352, 7940, 12560, 12704, 15880, 25120, 31760, 62329, 63520, 124658, 249316, 311645, 498632, 623290, 997264, 1246580, 1994528, 2493160, 4986320, 9972640]

約数ペア:

[(1, 9972640), (2, 4986320), (4, 2493160), (5, 1994528), (8, 1246580), (10, 997264), (16, 623290), (20, 498632), (32, 311645), (40, 249316), (80, 124658), (157, 63520), (160, 62329), (314, 31760), (397, 25120), (628, 15880), (785, 12704), (794, 12560), (1256, 7940), (1570, 6352), (1588, 6280), (1985, 5024), (2512, 3970), (3140, 3176)]