1999442920

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{335477}}^1$

素因数の和:335637

約数の個数: 32

約数和(自身を含む): 4528953000

約数和(自身を除く): 2529510080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 335477, 670954, 1341908, 1677385, 2683816, 3354770, 6709540, 13419080, 49986073, 99972146, 199944292, 249930365, 399888584, 499860730, 999721460, 1999442920]

約数ペア:

[(1, 1999442920), (2, 999721460), (4, 499860730), (5, 399888584), (8, 249930365), (10, 199944292), (20, 99972146), (40, 49986073), (149, 13419080), (298, 6709540), (596, 3354770), (745, 2683816), (1192, 1677385), (1490, 1341908), (2980, 670954), (5960, 335477)]