18390320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17683}}^1$

素因数の和:17709

約数の個数: 40

約数和(自身を含む): 46049136

約数和(自身を除く): 27658816

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17683, 35366, 70732, 88415, 141464, 176830, 229879, 282928, 353660, 459758, 707320, 919516, 1149395, 1414640, 1839032, 2298790, 3678064, 4597580, 9195160, 18390320]

約数ペア:

[(1, 18390320), (2, 9195160), (4, 4597580), (5, 3678064), (8, 2298790), (10, 1839032), (13, 1414640), (16, 1149395), (20, 919516), (26, 707320), (40, 459758), (52, 353660), (65, 282928), (80, 229879), (104, 176830), (130, 141464), (208, 88415), (260, 70732), (520, 35366), (1040, 17683)]