647729560

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{3049}}^1$

素因数の和:3220

約数の個数: 64

約数和(自身を含む): 1502064000

約数和(自身を除く): 854334440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 113, 188, 226, 235, 376, 452, 470, 565, 904, 940, 1130, 1880, 2260, 3049, 4520, 5311, 6098, 10622, 12196, 15245, 21244, 24392, 26555, 30490, 42488, 53110, 60980, 106220, 121960, 143303, 212440, 286606, 344537, 573212, 689074, 716515, 1146424, 1378148, 1433030, 1722685, 2756296, 2866060, 3445370, 5732120, 6890740, 13781480, 16193239, 32386478, 64772956, 80966195, 129545912, 161932390, 323864780, 647729560]

約数ペア:

[(1, 647729560), (2, 323864780), (4, 161932390), (5, 129545912), (8, 80966195), (10, 64772956), (20, 32386478), (40, 16193239), (47, 13781480), (94, 6890740), (113, 5732120), (188, 3445370), (226, 2866060), (235, 2756296), (376, 1722685), (452, 1433030), (470, 1378148), (565, 1146424), (904, 716515), (940, 689074), (1130, 573212), (1880, 344537), (2260, 286606), (3049, 212440), (4520, 143303), (5311, 121960), (6098, 106220), (10622, 60980), (12196, 53110), (15245, 42488), (21244, 30490), (24392, 26555)]