8722780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1279}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 20643840

約数和(自身を除く): 11921060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1279, 1364, 1705, 2558, 3410, 5116, 6395, 6820, 12790, 14069, 25580, 28138, 39649, 56276, 70345, 79298, 140690, 158596, 198245, 281380, 396490, 436139, 792980, 872278, 1744556, 2180695, 4361390, 8722780]

約数ペア:

[(1, 8722780), (2, 4361390), (4, 2180695), (5, 1744556), (10, 872278), (11, 792980), (20, 436139), (22, 396490), (31, 281380), (44, 198245), (55, 158596), (62, 140690), (110, 79298), (124, 70345), (155, 56276), (220, 39649), (310, 28138), (341, 25580), (620, 14069), (682, 12790), (1279, 6820), (1364, 6395), (1705, 5116), (2558, 3410)]