201960020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{165541}}^1$

素因数の和:165611

約数の個数: 24

約数和(自身を含む): 431071368

約数和(自身を除く): 229111348

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 165541, 331082, 662164, 827705, 1655410, 3310820, 10098001, 20196002, 40392004, 50490005, 100980010, 201960020]

約数ペア:

[(1, 201960020), (2, 100980010), (4, 50490005), (5, 40392004), (10, 20196002), (20, 10098001), (61, 3310820), (122, 1655410), (244, 827705), (305, 662164), (610, 331082), (1220, 165541)]