128493250

素因数分解:

$2^1\times 5^3\times {\mathrm{197}}^1\times {\mathrm{2609}}^1$

素因数の和:2823

約数の個数: 32

約数和(自身を含む): 241853040

約数和(自身を除く): 113359790

約数列:

[1, 2, 5, 10, 25, 50, 125, 197, 250, 394, 985, 1970, 2609, 4925, 5218, 9850, 13045, 24625, 26090, 49250, 65225, 130450, 326125, 513973, 652250, 1027946, 2569865, 5139730, 12849325, 25698650, 64246625, 128493250]

約数ペア:

[(1, 128493250), (2, 64246625), (5, 25698650), (10, 12849325), (25, 5139730), (50, 2569865), (125, 1027946), (197, 652250), (250, 513973), (394, 326125), (985, 130450), (1970, 65225), (2609, 49250), (4925, 26090), (5218, 24625), (9850, 13045)]