203948440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{137803}}^1$

素因数の和:137851

約数の個数: 32

約数和(自身を含む): 471289680

約数和(自身を除く): 267341240

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 137803, 275606, 551212, 689015, 1102424, 1378030, 2756060, 5098711, 5512120, 10197422, 20394844, 25493555, 40789688, 50987110, 101974220, 203948440]

約数ペア:

[(1, 203948440), (2, 101974220), (4, 50987110), (5, 40789688), (8, 25493555), (10, 20394844), (20, 10197422), (37, 5512120), (40, 5098711), (74, 2756060), (148, 1378030), (185, 1102424), (296, 689015), (370, 551212), (740, 275606), (1480, 137803)]