1123720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2161}}^1$

素因数の和:2185

約数の個数: 32

約数和(自身を含む): 2724120

約数和(自身を除く): 1600400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2161, 4322, 8644, 10805, 17288, 21610, 28093, 43220, 56186, 86440, 112372, 140465, 224744, 280930, 561860, 1123720]

約数ペア:

[(1, 1123720), (2, 561860), (4, 280930), (5, 224744), (8, 140465), (10, 112372), (13, 86440), (20, 56186), (26, 43220), (40, 28093), (52, 21610), (65, 17288), (104, 10805), (130, 8644), (260, 4322), (520, 2161)]