1297682960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{20507}}^1$

素因数の和:20640

約数の個数: 80

約数和(自身を含む): 3478813056

約数和(自身を除く): 2181130096

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 113, 140, 226, 280, 452, 560, 565, 791, 904, 1130, 1582, 1808, 2260, 3164, 3955, 4520, 6328, 7910, 9040, 12656, 15820, 20507, 31640, 41014, 63280, 82028, 102535, 143549, 164056, 205070, 287098, 328112, 410140, 574196, 717745, 820280, 1148392, 1435490, 1640560, 2296784, 2317291, 2870980, 4634582, 5741960, 9269164, 11483920, 11586455, 16221037, 18538328, 23172910, 32442074, 37076656, 46345820, 64884148, 81105185, 92691640, 129768296, 162210370, 185383280, 259536592, 324420740, 648841480, 1297682960]

約数ペア:

[(1, 1297682960), (2, 648841480), (4, 324420740), (5, 259536592), (7, 185383280), (8, 162210370), (10, 129768296), (14, 92691640), (16, 81105185), (20, 64884148), (28, 46345820), (35, 37076656), (40, 32442074), (56, 23172910), (70, 18538328), (80, 16221037), (112, 11586455), (113, 11483920), (140, 9269164), (226, 5741960), (280, 4634582), (452, 2870980), (560, 2317291), (565, 2296784), (791, 1640560), (904, 1435490), (1130, 1148392), (1582, 820280), (1808, 717745), (2260, 574196), (3164, 410140), (3955, 328112), (4520, 287098), (6328, 205070), (7910, 164056), (9040, 143549), (12656, 102535), (15820, 82028), (20507, 63280), (31640, 41014)]