20043075

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 36379616

約数和(自身を除く): 16336541

約数列:

[1, 3, 5, 13, 15, 25, 39, 61, 65, 75, 183, 195, 305, 325, 337, 793, 915, 975, 1011, 1525, 1685, 2379, 3965, 4381, 4575, 5055, 8425, 11895, 13143, 19825, 20557, 21905, 25275, 59475, 61671, 65715, 102785, 109525, 267241, 308355, 328575, 513925, 801723, 1336205, 1541775, 4008615, 6681025, 20043075]

約数ペア:

[(1, 20043075), (3, 6681025), (5, 4008615), (13, 1541775), (15, 1336205), (25, 801723), (39, 513925), (61, 328575), (65, 308355), (75, 267241), (183, 109525), (195, 102785), (305, 65715), (325, 61671), (337, 59475), (793, 25275), (915, 21905), (975, 20557), (1011, 19825), (1525, 13143), (1685, 11895), (2379, 8425), (3965, 5055), (4381, 4575)]