64405928

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{3407}}^1$

素因数の和:3569

約数の個数: 32

約数和(自身を含む): 128822400

約数和(自身を除く): 64416472

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 139, 278, 556, 1112, 2363, 3407, 4726, 6814, 9452, 13628, 18904, 27256, 57919, 115838, 231676, 463352, 473573, 947146, 1894292, 3788584, 8050741, 16101482, 32202964, 64405928]

約数ペア:

[(1, 64405928), (2, 32202964), (4, 16101482), (8, 8050741), (17, 3788584), (34, 1894292), (68, 947146), (136, 473573), (139, 463352), (278, 231676), (556, 115838), (1112, 57919), (2363, 27256), (3407, 18904), (4726, 13628), (6814, 9452)]