256423905

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{677}}^1$

素因数の和:1150

約数の個数: 48

約数和(自身を含む): 469609920

約数和(自身を除く): 213186015

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 443, 677, 855, 1329, 2031, 2215, 3385, 3987, 6093, 6645, 8417, 10155, 12863, 19935, 25251, 30465, 38589, 42085, 64315, 75753, 115767, 126255, 192945, 299911, 378765, 578835, 899733, 1499555, 2699199, 4498665, 5698309, 13495995, 17094927, 28491545, 51284781, 85474635, 256423905]

約数ペア:

[(1, 256423905), (3, 85474635), (5, 51284781), (9, 28491545), (15, 17094927), (19, 13495995), (45, 5698309), (57, 4498665), (95, 2699199), (171, 1499555), (285, 899733), (443, 578835), (677, 378765), (855, 299911), (1329, 192945), (2031, 126255), (2215, 115767), (3385, 75753), (3987, 64315), (6093, 42085), (6645, 38589), (8417, 30465), (10155, 25251), (12863, 19935)]