290308720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{279143}}^1$

素因数の和:279169

約数の個数: 40

約数和(自身を含む): 726890976

約数和(自身を除く): 436582256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 279143, 558286, 1116572, 1395715, 2233144, 2791430, 3628859, 4466288, 5582860, 7257718, 11165720, 14515436, 18144295, 22331440, 29030872, 36288590, 58061744, 72577180, 145154360, 290308720]

約数ペア:

[(1, 290308720), (2, 145154360), (4, 72577180), (5, 58061744), (8, 36288590), (10, 29030872), (13, 22331440), (16, 18144295), (20, 14515436), (26, 11165720), (40, 7257718), (52, 5582860), (65, 4466288), (80, 3628859), (104, 2791430), (130, 2233144), (208, 1395715), (260, 1116572), (520, 558286), (1040, 279143)]