201751640

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{25603}}^1$

素因数の和:25811

約数の個数: 32

約数和(自身を含む): 456263280

約数和(自身を除く): 254511640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 25603, 51206, 102412, 128015, 204824, 256030, 512060, 1024120, 5043791, 10087582, 20175164, 25218955, 40350328, 50437910, 100875820, 201751640]

約数ペア:

[(1, 201751640), (2, 100875820), (4, 50437910), (5, 40350328), (8, 25218955), (10, 20175164), (20, 10087582), (40, 5043791), (197, 1024120), (394, 512060), (788, 256030), (985, 204824), (1576, 128015), (1970, 102412), (3940, 51206), (7880, 25603)]