20100116

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{431}}^1$

素因数の和:655

約数の個数: 24

約数和(自身を含む): 35925120

約数和(自身を除く): 15825004

約数列:

[1, 2, 4, 89, 131, 178, 262, 356, 431, 524, 862, 1724, 11659, 23318, 38359, 46636, 56461, 76718, 112922, 153436, 225844, 5025029, 10050058, 20100116]

約数ペア:

[(1, 20100116), (2, 10050058), (4, 5025029), (89, 225844), (131, 153436), (178, 112922), (262, 76718), (356, 56461), (431, 46636), (524, 38359), (862, 23318), (1724, 11659)]