289807570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{117331}}^1$

素因数の和:117370

約数の個数: 32

約数和(自身を含む): 591353280

約数和(自身を除く): 301545710

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 117331, 234662, 586655, 1173310, 1525303, 2229289, 3050606, 4458578, 7626515, 11146445, 15253030, 22292890, 28980757, 57961514, 144903785, 289807570]

約数ペア:

[(1, 289807570), (2, 144903785), (5, 57961514), (10, 28980757), (13, 22292890), (19, 15253030), (26, 11146445), (38, 7626515), (65, 4458578), (95, 3050606), (130, 2229289), (190, 1525303), (247, 1173310), (494, 586655), (1235, 234662), (2470, 117331)]