20120176

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30671}}^1$

素因数の和:30720

約数の個数: 20

約数和(自身を含む): 39934944

約数和(自身を除く): 19814768

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30671, 61342, 122684, 245368, 490736, 1257511, 2515022, 5030044, 10060088, 20120176]

約数ペア:

[(1, 20120176), (2, 10060088), (4, 5030044), (8, 2515022), (16, 1257511), (41, 490736), (82, 245368), (164, 122684), (328, 61342), (656, 30671)]