201212240

素因数分解:

$2^4\times 5^1\times {\mathrm{2515153}}^1$

素因数の和:2515166

約数の個数: 20

約数和(自身を含む): 467818644

約数和(自身を除く): 266606404

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2515153, 5030306, 10060612, 12575765, 20121224, 25151530, 40242448, 50303060, 100606120, 201212240]

約数ペア:

[(1, 201212240), (2, 100606120), (4, 50303060), (5, 40242448), (8, 25151530), (10, 20121224), (16, 12575765), (20, 10060612), (40, 5030306), (80, 2515153)]