31880290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12907}}^1$

素因数の和:12946

約数の個数: 32

約数和(自身を含む): 65056320

約数和(自身を除く): 33176030

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 12907, 25814, 64535, 129070, 167791, 245233, 335582, 490466, 838955, 1226165, 1677910, 2452330, 3188029, 6376058, 15940145, 31880290]

約数ペア:

[(1, 31880290), (2, 15940145), (5, 6376058), (10, 3188029), (13, 2452330), (19, 1677910), (26, 1226165), (38, 838955), (65, 490466), (95, 335582), (130, 245233), (190, 167791), (247, 129070), (494, 64535), (1235, 25814), (2470, 12907)]