201323720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{387161}}^1$

素因数の和:387185

約数の個数: 32

約数和(自身を含む): 487824120

約数和(自身を除く): 286500400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 387161, 774322, 1548644, 1935805, 3097288, 3871610, 5033093, 7743220, 10066186, 15486440, 20132372, 25165465, 40264744, 50330930, 100661860, 201323720]

約数ペア:

[(1, 201323720), (2, 100661860), (4, 50330930), (5, 40264744), (8, 25165465), (10, 20132372), (13, 15486440), (20, 10066186), (26, 7743220), (40, 5033093), (52, 3871610), (65, 3097288), (104, 1935805), (130, 1548644), (260, 774322), (520, 387161)]