78356840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2179}}^1$

素因数の和:2250

約数の個数: 64

約数和(自身を含む): 188352000

約数和(自身を除く): 109995160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 899, 1160, 1240, 1798, 2179, 3596, 4358, 4495, 7192, 8716, 8990, 10895, 17432, 17980, 21790, 35960, 43580, 63191, 67549, 87160, 126382, 135098, 252764, 270196, 315955, 337745, 505528, 540392, 631910, 675490, 1263820, 1350980, 1958921, 2527640, 2701960, 3917842, 7835684, 9794605, 15671368, 19589210, 39178420, 78356840]

約数ペア:

[(1, 78356840), (2, 39178420), (4, 19589210), (5, 15671368), (8, 9794605), (10, 7835684), (20, 3917842), (29, 2701960), (31, 2527640), (40, 1958921), (58, 1350980), (62, 1263820), (116, 675490), (124, 631910), (145, 540392), (155, 505528), (232, 337745), (248, 315955), (290, 270196), (310, 252764), (580, 135098), (620, 126382), (899, 87160), (1160, 67549), (1240, 63191), (1798, 43580), (2179, 35960), (3596, 21790), (4358, 17980), (4495, 17432), (7192, 10895), (8716, 8990)]