408404620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1759}}^1$

素因数の和:1847

約数の個数: 96

約数和(自身を含む): 993484800

約数和(自身を除く): 585080180

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 47, 52, 65, 76, 94, 95, 130, 188, 190, 235, 247, 260, 380, 470, 494, 611, 893, 940, 988, 1222, 1235, 1759, 1786, 2444, 2470, 3055, 3518, 3572, 4465, 4940, 6110, 7036, 8795, 8930, 11609, 12220, 17590, 17860, 22867, 23218, 33421, 35180, 45734, 46436, 58045, 66842, 82673, 91468, 114335, 116090, 133684, 165346, 167105, 228670, 232180, 330692, 334210, 413365, 434473, 457340, 668420, 826730, 868946, 1074749, 1570787, 1653460, 1737892, 2149498, 2172365, 3141574, 4298996, 4344730, 5373745, 6283148, 7853935, 8689460, 10747490, 15707870, 20420231, 21494980, 31415740, 40840462, 81680924, 102101155, 204202310, 408404620]

約数ペア:

[(1, 408404620), (2, 204202310), (4, 102101155), (5, 81680924), (10, 40840462), (13, 31415740), (19, 21494980), (20, 20420231), (26, 15707870), (38, 10747490), (47, 8689460), (52, 7853935), (65, 6283148), (76, 5373745), (94, 4344730), (95, 4298996), (130, 3141574), (188, 2172365), (190, 2149498), (235, 1737892), (247, 1653460), (260, 1570787), (380, 1074749), (470, 868946), (494, 826730), (611, 668420), (893, 457340), (940, 434473), (988, 413365), (1222, 334210), (1235, 330692), (1759, 232180), (1786, 228670), (2444, 167105), (2470, 165346), (3055, 133684), (3518, 116090), (3572, 114335), (4465, 91468), (4940, 82673), (6110, 66842), (7036, 58045), (8795, 46436), (8930, 45734), (11609, 35180), (12220, 33421), (17590, 23218), (17860, 22867)]