31787080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61129}}^1$

素因数の和:61153

約数の個数: 32

約数和(自身を含む): 77023800

約数和(自身を除く): 45236720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 61129, 122258, 244516, 305645, 489032, 611290, 794677, 1222580, 1589354, 2445160, 3178708, 3973385, 6357416, 7946770, 15893540, 31787080]

約数ペア:

[(1, 31787080), (2, 15893540), (4, 7946770), (5, 6357416), (8, 3973385), (10, 3178708), (13, 2445160), (20, 1589354), (26, 1222580), (40, 794677), (52, 611290), (65, 489032), (104, 305645), (130, 244516), (260, 122258), (520, 61129)]