20187059215

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{811}}^1\times {\mathrm{857}}^1$

素因数の和:1867

約数の個数: 32

約数和(自身を含む): 25097776704

約数和(自身を除く): 4910717489

約数列:

[1, 5, 37, 157, 185, 785, 811, 857, 4055, 4285, 5809, 29045, 30007, 31709, 127327, 134549, 150035, 158545, 636635, 672745, 695027, 3475135, 4711099, 4978313, 23555495, 24891565, 25715999, 109119239, 128579995, 545596195, 4037411843, 20187059215]

約数ペア:

[(1, 20187059215), (5, 4037411843), (37, 545596195), (157, 128579995), (185, 109119239), (785, 25715999), (811, 24891565), (857, 23555495), (4055, 4978313), (4285, 4711099), (5809, 3475135), (29045, 695027), (30007, 672745), (31709, 636635), (127327, 158545), (134549, 150035)]