87493780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12829}}^1$

素因数の和:12880

約数の個数: 48

約数和(自身を含む): 206922240

約数和(自身を除く): 119428460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 12829, 25658, 51316, 64145, 128290, 141119, 256580, 282238, 397699, 564476, 705595, 795398, 1411190, 1590796, 1988495, 2822380, 3976990, 4374689, 7953980, 8749378, 17498756, 21873445, 43746890, 87493780]

約数ペア:

[(1, 87493780), (2, 43746890), (4, 21873445), (5, 17498756), (10, 8749378), (11, 7953980), (20, 4374689), (22, 3976990), (31, 2822380), (44, 1988495), (55, 1590796), (62, 1411190), (110, 795398), (124, 705595), (155, 564476), (220, 397699), (310, 282238), (341, 256580), (620, 141119), (682, 128290), (1364, 64145), (1705, 51316), (3410, 25658), (6820, 12829)]