20101016

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{557}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 40778640

約数和(自身を除く): 20677624

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 347, 557, 694, 1114, 1388, 2228, 2776, 4456, 4511, 7241, 9022, 14482, 18044, 28964, 36088, 57928, 193279, 386558, 773116, 1546232, 2512627, 5025254, 10050508, 20101016]

約数ペア:

[(1, 20101016), (2, 10050508), (4, 5025254), (8, 2512627), (13, 1546232), (26, 773116), (52, 386558), (104, 193279), (347, 57928), (557, 36088), (694, 28964), (1114, 18044), (1388, 14482), (2228, 9022), (2776, 7241), (4456, 4511)]