64358660

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{743}}^1$

素因数の和:884

約数の個数: 48

約数和(自身を含む): 139491072

約数和(自身を除く): 75132412

約数列:

[1, 2, 4, 5, 10, 20, 61, 71, 122, 142, 244, 284, 305, 355, 610, 710, 743, 1220, 1420, 1486, 2972, 3715, 4331, 7430, 8662, 14860, 17324, 21655, 43310, 45323, 52753, 86620, 90646, 105506, 181292, 211012, 226615, 263765, 453230, 527530, 906460, 1055060, 3217933, 6435866, 12871732, 16089665, 32179330, 64358660]

約数ペア:

[(1, 64358660), (2, 32179330), (4, 16089665), (5, 12871732), (10, 6435866), (20, 3217933), (61, 1055060), (71, 906460), (122, 527530), (142, 453230), (244, 263765), (284, 226615), (305, 211012), (355, 181292), (610, 105506), (710, 90646), (743, 86620), (1220, 52753), (1420, 45323), (1486, 43310), (2972, 21655), (3715, 17324), (4331, 14860), (7430, 8662)]