18133960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{811}}^1$

素因数の和:878

約数の個数: 64

約数和(自身を含む): 45017280

約数和(自身を除く): 26883320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 811, 860, 1118, 1622, 1720, 2236, 2795, 3244, 4055, 4472, 5590, 6488, 8110, 10543, 11180, 16220, 21086, 22360, 32440, 34873, 42172, 52715, 69746, 84344, 105430, 139492, 174365, 210860, 278984, 348730, 421720, 453349, 697460, 906698, 1394920, 1813396, 2266745, 3626792, 4533490, 9066980, 18133960]

約数ペア:

[(1, 18133960), (2, 9066980), (4, 4533490), (5, 3626792), (8, 2266745), (10, 1813396), (13, 1394920), (20, 906698), (26, 697460), (40, 453349), (43, 421720), (52, 348730), (65, 278984), (86, 210860), (104, 174365), (130, 139492), (172, 105430), (215, 84344), (260, 69746), (344, 52715), (430, 42172), (520, 34873), (559, 32440), (811, 22360), (860, 21086), (1118, 16220), (1622, 11180), (1720, 10543), (2236, 8110), (2795, 6488), (3244, 5590), (4055, 4472)]