20802180040

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5843309}}^1$

素因数の和:5843409

約数の個数: 32

約数和(自身を含む): 47330811000

約数和(自身を除く): 26528630960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 5843309, 11686618, 23373236, 29216545, 46746472, 58433090, 116866180, 233732360, 520054501, 1040109002, 2080218004, 2600272505, 4160436008, 5200545010, 10401090020, 20802180040]

約数ペア:

[(1, 20802180040), (2, 10401090020), (4, 5200545010), (5, 4160436008), (8, 2600272505), (10, 2080218004), (20, 1040109002), (40, 520054501), (89, 233732360), (178, 116866180), (356, 58433090), (445, 46746472), (712, 29216545), (890, 23373236), (1780, 11686618), (3560, 5843309)]