201215120

素因数分解:

$2^4\times 5^1\times {\mathrm{2515189}}^1$

素因数の和:2515202

約数の個数: 20

約数和(自身を含む): 467825340

約数和(自身を除く): 266610220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2515189, 5030378, 10060756, 12575945, 20121512, 25151890, 40243024, 50303780, 100607560, 201215120]

約数ペア:

[(1, 201215120), (2, 100607560), (4, 50303780), (5, 40243024), (8, 25151890), (10, 20121512), (16, 12575945), (20, 10060756), (40, 5030378), (80, 2515189)]