321733360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{309359}}^1$

素因数の和:309385

約数の個数: 40

約数和(自身を含む): 805573440

約数和(自身を除く): 483840080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 309359, 618718, 1237436, 1546795, 2474872, 3093590, 4021667, 4949744, 6187180, 8043334, 12374360, 16086668, 20108335, 24748720, 32173336, 40216670, 64346672, 80433340, 160866680, 321733360]

約数ペア:

[(1, 321733360), (2, 160866680), (4, 80433340), (5, 64346672), (8, 40216670), (10, 32173336), (13, 24748720), (16, 20108335), (20, 16086668), (26, 12374360), (40, 8043334), (52, 6187180), (65, 4949744), (80, 4021667), (104, 3093590), (130, 2474872), (208, 1546795), (260, 1237436), (520, 618718), (1040, 309359)]