20303075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{349}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 27342000

約数和(自身を除く): 7038925

約数列:

[1, 5, 13, 25, 65, 179, 325, 349, 895, 1745, 2327, 4475, 4537, 8725, 11635, 22685, 58175, 62471, 113425, 312355, 812123, 1561775, 4060615, 20303075]

約数ペア:

[(1, 20303075), (5, 4060615), (13, 1561775), (25, 812123), (65, 312355), (179, 113425), (325, 62471), (349, 58175), (895, 22685), (1745, 11635), (2327, 8725), (4475, 4537)]