18180320

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^2\times {\mathrm{83}}^1$

素因数の和:172

約数の個数: 72

約数和(自身を含む): 44675064

約数和(自身を除く): 26494744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 83, 148, 160, 166, 185, 296, 332, 370, 415, 592, 664, 740, 830, 1184, 1328, 1369, 1480, 1660, 2656, 2738, 2960, 3071, 3320, 5476, 5920, 6142, 6640, 6845, 10952, 12284, 13280, 13690, 15355, 21904, 24568, 27380, 30710, 43808, 49136, 54760, 61420, 98272, 109520, 113627, 122840, 219040, 227254, 245680, 454508, 491360, 568135, 909016, 1136270, 1818032, 2272540, 3636064, 4545080, 9090160, 18180320]

約数ペア:

[(1, 18180320), (2, 9090160), (4, 4545080), (5, 3636064), (8, 2272540), (10, 1818032), (16, 1136270), (20, 909016), (32, 568135), (37, 491360), (40, 454508), (74, 245680), (80, 227254), (83, 219040), (148, 122840), (160, 113627), (166, 109520), (185, 98272), (296, 61420), (332, 54760), (370, 49136), (415, 43808), (592, 30710), (664, 27380), (740, 24568), (830, 21904), (1184, 15355), (1328, 13690), (1369, 13280), (1480, 12284), (1660, 10952), (2656, 6845), (2738, 6640), (2960, 6142), (3071, 5920), (3320, 5476)]