19111280

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{4049}}^1$

素因数の和:4121

約数の個数: 40

約数和(自身を含む): 45198000

約数和(自身を除く): 26086720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4049, 4720, 8098, 16196, 20245, 32392, 40490, 64784, 80980, 161960, 238891, 323920, 477782, 955564, 1194455, 1911128, 2388910, 3822256, 4777820, 9555640, 19111280]

約数ペア:

[(1, 19111280), (2, 9555640), (4, 4777820), (5, 3822256), (8, 2388910), (10, 1911128), (16, 1194455), (20, 955564), (40, 477782), (59, 323920), (80, 238891), (118, 161960), (236, 80980), (295, 64784), (472, 40490), (590, 32392), (944, 20245), (1180, 16196), (2360, 8098), (4049, 4720)]