51182120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1307}}^1$

素因数の和:1418

約数の個数: 64

約数和(自身を含む): 127137600

約数和(自身を除く): 75955480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 89, 110, 178, 220, 356, 440, 445, 712, 890, 979, 1307, 1780, 1958, 2614, 3560, 3916, 4895, 5228, 6535, 7832, 9790, 10456, 13070, 14377, 19580, 26140, 28754, 39160, 52280, 57508, 71885, 115016, 116323, 143770, 232646, 287540, 465292, 575080, 581615, 930584, 1163230, 1279553, 2326460, 2559106, 4652920, 5118212, 6397765, 10236424, 12795530, 25591060, 51182120]

約数ペア:

[(1, 51182120), (2, 25591060), (4, 12795530), (5, 10236424), (8, 6397765), (10, 5118212), (11, 4652920), (20, 2559106), (22, 2326460), (40, 1279553), (44, 1163230), (55, 930584), (88, 581615), (89, 575080), (110, 465292), (178, 287540), (220, 232646), (356, 143770), (440, 116323), (445, 115016), (712, 71885), (890, 57508), (979, 52280), (1307, 39160), (1780, 28754), (1958, 26140), (2614, 19580), (3560, 14377), (3916, 13070), (4895, 10456), (5228, 9790), (6535, 7832)]