2558070

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:717

約数の個数: 48

約数和(自身を含む): 6815952

約数和(自身を除く): 4257882

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 661, 774, 1290, 1322, 1935, 1983, 3305, 3870, 3966, 5949, 6610, 9915, 11898, 19830, 28423, 29745, 56846, 59490, 85269, 142115, 170538, 255807, 284230, 426345, 511614, 852690, 1279035, 2558070]

約数ペア:

[(1, 2558070), (2, 1279035), (3, 852690), (5, 511614), (6, 426345), (9, 284230), (10, 255807), (15, 170538), (18, 142115), (30, 85269), (43, 59490), (45, 56846), (86, 29745), (90, 28423), (129, 19830), (215, 11898), (258, 9915), (387, 6610), (430, 5949), (645, 3966), (661, 3870), (774, 3305), (1290, 1983), (1322, 1935)]