38977780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{743}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 85244544

約数和(自身を除く): 46266764

約数列:

[1, 2, 4, 5, 10, 20, 43, 61, 86, 122, 172, 215, 244, 305, 430, 610, 743, 860, 1220, 1486, 2623, 2972, 3715, 5246, 7430, 10492, 13115, 14860, 26230, 31949, 45323, 52460, 63898, 90646, 127796, 159745, 181292, 226615, 319490, 453230, 638980, 906460, 1948889, 3897778, 7795556, 9744445, 19488890, 38977780]

約数ペア:

[(1, 38977780), (2, 19488890), (4, 9744445), (5, 7795556), (10, 3897778), (20, 1948889), (43, 906460), (61, 638980), (86, 453230), (122, 319490), (172, 226615), (215, 181292), (244, 159745), (305, 127796), (430, 90646), (610, 63898), (743, 52460), (860, 45323), (1220, 31949), (1486, 26230), (2623, 14860), (2972, 13115), (3715, 10492), (5246, 7430)]