28232440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9941}}^1$

素因数の和:10023

約数の個数: 32

約数和(自身を含む): 64424160

約数和(自身を除く): 36191720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 9941, 19882, 39764, 49705, 79528, 99410, 198820, 397640, 705811, 1411622, 2823244, 3529055, 5646488, 7058110, 14116220, 28232440]

約数ペア:

[(1, 28232440), (2, 14116220), (4, 7058110), (5, 5646488), (8, 3529055), (10, 2823244), (20, 1411622), (40, 705811), (71, 397640), (142, 198820), (284, 99410), (355, 79528), (568, 49705), (710, 39764), (1420, 19882), (2840, 9941)]