179407540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{22259}}^1$

素因数の和:22312

約数の個数: 48

約数和(自身を含む): 418844160

約数和(自身を除く): 239436620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 22259, 44518, 89036, 111295, 222590, 289367, 445180, 578734, 690029, 1157468, 1380058, 1446835, 2760116, 2893670, 3450145, 5787340, 6900290, 8970377, 13800580, 17940754, 35881508, 44851885, 89703770, 179407540]

約数ペア:

[(1, 179407540), (2, 89703770), (4, 44851885), (5, 35881508), (10, 17940754), (13, 13800580), (20, 8970377), (26, 6900290), (31, 5787340), (52, 3450145), (62, 2893670), (65, 2760116), (124, 1446835), (130, 1380058), (155, 1157468), (260, 690029), (310, 578734), (403, 445180), (620, 289367), (806, 222590), (1612, 111295), (2015, 89036), (4030, 44518), (8060, 22259)]