39720460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{673}}^1$

素因数の和:922

約数の個数: 48

約数和(自身を含む): 90359136

約数和(自身を除く): 50638676

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 227, 260, 454, 673, 908, 1135, 1346, 2270, 2692, 2951, 3365, 4540, 5902, 6730, 8749, 11804, 13460, 14755, 17498, 29510, 34996, 43745, 59020, 87490, 152771, 174980, 305542, 611084, 763855, 1527710, 1986023, 3055420, 3972046, 7944092, 9930115, 19860230, 39720460]

約数ペア:

[(1, 39720460), (2, 19860230), (4, 9930115), (5, 7944092), (10, 3972046), (13, 3055420), (20, 1986023), (26, 1527710), (52, 763855), (65, 611084), (130, 305542), (227, 174980), (260, 152771), (454, 87490), (673, 59020), (908, 43745), (1135, 34996), (1346, 29510), (2270, 17498), (2692, 14755), (2951, 13460), (3365, 11804), (4540, 8749), (5902, 6730)]