15678320720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{69031}}^1$

素因数の和:69228

約数の個数: 80

約数和(自身を含む): 38828014848

約数和(自身を除く): 23149694128

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 167, 170, 272, 334, 340, 668, 680, 835, 1336, 1360, 1670, 2672, 2839, 3340, 5678, 6680, 11356, 13360, 14195, 22712, 28390, 45424, 56780, 69031, 113560, 138062, 227120, 276124, 345155, 552248, 690310, 1104496, 1173527, 1380620, 2347054, 2761240, 4694108, 5522480, 5867635, 9388216, 11528177, 11735270, 18776432, 23056354, 23470540, 46112708, 46941080, 57640885, 92225416, 93882160, 115281770, 184450832, 195979009, 230563540, 391958018, 461127080, 783916036, 922254160, 979895045, 1567832072, 1959790090, 3135664144, 3919580180, 7839160360, 15678320720]

約数ペア:

[(1, 15678320720), (2, 7839160360), (4, 3919580180), (5, 3135664144), (8, 1959790090), (10, 1567832072), (16, 979895045), (17, 922254160), (20, 783916036), (34, 461127080), (40, 391958018), (68, 230563540), (80, 195979009), (85, 184450832), (136, 115281770), (167, 93882160), (170, 92225416), (272, 57640885), (334, 46941080), (340, 46112708), (668, 23470540), (680, 23056354), (835, 18776432), (1336, 11735270), (1360, 11528177), (1670, 9388216), (2672, 5867635), (2839, 5522480), (3340, 4694108), (5678, 2761240), (6680, 2347054), (11356, 1380620), (13360, 1173527), (14195, 1104496), (22712, 690310), (28390, 552248), (45424, 345155), (56780, 276124), (69031, 227120), (113560, 138062)]