20308575

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{383}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 38854656

約数和(自身を除く): 18546081

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 101, 105, 175, 303, 383, 505, 525, 707, 1149, 1515, 1915, 2121, 2525, 2681, 3535, 5745, 7575, 8043, 9575, 10605, 13405, 17675, 28725, 38683, 40215, 53025, 67025, 116049, 193415, 201075, 270781, 580245, 812343, 967075, 1353905, 2901225, 4061715, 6769525, 20308575]

約数ペア:

[(1, 20308575), (3, 6769525), (5, 4061715), (7, 2901225), (15, 1353905), (21, 967075), (25, 812343), (35, 580245), (75, 270781), (101, 201075), (105, 193415), (175, 116049), (303, 67025), (383, 53025), (505, 40215), (525, 38683), (707, 28725), (1149, 17675), (1515, 13405), (1915, 10605), (2121, 9575), (2525, 8043), (2681, 7575), (3535, 5745)]