28667560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{379}}^1$

素因数の和:482

約数の個数: 64

約数和(自身を含む): 67852800

約数和(自身を除く): 39185240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 379, 488, 610, 620, 758, 1220, 1240, 1516, 1891, 1895, 2440, 3032, 3782, 3790, 7564, 7580, 9455, 11749, 15128, 15160, 18910, 23119, 23498, 37820, 46238, 46996, 58745, 75640, 92476, 93992, 115595, 117490, 184952, 231190, 234980, 462380, 469960, 716689, 924760, 1433378, 2866756, 3583445, 5733512, 7166890, 14333780, 28667560]

約数ペア:

[(1, 28667560), (2, 14333780), (4, 7166890), (5, 5733512), (8, 3583445), (10, 2866756), (20, 1433378), (31, 924760), (40, 716689), (61, 469960), (62, 462380), (122, 234980), (124, 231190), (155, 184952), (244, 117490), (248, 115595), (305, 93992), (310, 92476), (379, 75640), (488, 58745), (610, 46996), (620, 46238), (758, 37820), (1220, 23498), (1240, 23119), (1516, 18910), (1891, 15160), (1895, 15128), (2440, 11749), (3032, 9455), (3782, 7580), (3790, 7564)]