80040740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1459}}^1$

素因数の和:1692

約数の個数: 48

約数和(自身を含む): 181997760

約数和(自身を除く): 101957020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 211, 260, 422, 844, 1055, 1459, 2110, 2743, 2918, 4220, 5486, 5836, 7295, 10972, 13715, 14590, 18967, 27430, 29180, 37934, 54860, 75868, 94835, 189670, 307849, 379340, 615698, 1231396, 1539245, 3078490, 4002037, 6156980, 8004074, 16008148, 20010185, 40020370, 80040740]

約数ペア:

[(1, 80040740), (2, 40020370), (4, 20010185), (5, 16008148), (10, 8004074), (13, 6156980), (20, 4002037), (26, 3078490), (52, 1539245), (65, 1231396), (130, 615698), (211, 379340), (260, 307849), (422, 189670), (844, 94835), (1055, 75868), (1459, 54860), (2110, 37934), (2743, 29180), (2918, 27430), (4220, 18967), (5486, 14590), (5836, 13715), (7295, 10972)]