18971600

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1103}}^1$

素因数の和:1164

約数の個数: 60

約数和(自身を含む): 46681536

約数和(自身を除く): 27709936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 172, 200, 215, 344, 400, 430, 688, 860, 1075, 1103, 1720, 2150, 2206, 3440, 4300, 4412, 5515, 8600, 8824, 11030, 17200, 17648, 22060, 27575, 44120, 47429, 55150, 88240, 94858, 110300, 189716, 220600, 237145, 379432, 441200, 474290, 758864, 948580, 1185725, 1897160, 2371450, 3794320, 4742900, 9485800, 18971600]

約数ペア:

[(1, 18971600), (2, 9485800), (4, 4742900), (5, 3794320), (8, 2371450), (10, 1897160), (16, 1185725), (20, 948580), (25, 758864), (40, 474290), (43, 441200), (50, 379432), (80, 237145), (86, 220600), (100, 189716), (172, 110300), (200, 94858), (215, 88240), (344, 55150), (400, 47429), (430, 44120), (688, 27575), (860, 22060), (1075, 17648), (1103, 17200), (1720, 11030), (2150, 8824), (2206, 8600), (3440, 5515), (4300, 4412)]