640486732

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1\times {\mathrm{307}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 1200115840

約数和(自身を除く): 559629108

約数列:

[1, 2, 4, 19, 38, 76, 97, 194, 283, 307, 388, 566, 614, 1132, 1228, 1843, 3686, 5377, 5833, 7372, 10754, 11666, 21508, 23332, 27451, 29779, 54902, 59558, 86881, 109804, 119116, 173762, 347524, 521569, 565801, 1043138, 1131602, 1650739, 2086276, 2263204, 3301478, 6602956, 8427457, 16854914, 33709828, 160121683, 320243366, 640486732]

約数ペア:

[(1, 640486732), (2, 320243366), (4, 160121683), (19, 33709828), (38, 16854914), (76, 8427457), (97, 6602956), (194, 3301478), (283, 2263204), (307, 2086276), (388, 1650739), (566, 1131602), (614, 1043138), (1132, 565801), (1228, 521569), (1843, 347524), (3686, 173762), (5377, 119116), (5833, 109804), (7372, 86881), (10754, 59558), (11666, 54902), (21508, 29779), (23332, 27451)]