71003720

素因数分解:

$2^3\times 5^1\times {\mathrm{853}}^1\times {\mathrm{2081}}^1$

素因数の和:2945

約数の個数: 32

約数和(自身を含む): 160022520

約数和(自身を除く): 89018800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 853, 1706, 2081, 3412, 4162, 4265, 6824, 8324, 8530, 10405, 16648, 17060, 20810, 34120, 41620, 83240, 1775093, 3550186, 7100372, 8875465, 14200744, 17750930, 35501860, 71003720]

約数ペア:

[(1, 71003720), (2, 35501860), (4, 17750930), (5, 14200744), (8, 8875465), (10, 7100372), (20, 3550186), (40, 1775093), (853, 83240), (1706, 41620), (2081, 34120), (3412, 20810), (4162, 17060), (4265, 16648), (6824, 10405), (8324, 8530)]