20001692728

素因数分解:

$2^3\times {\mathrm{17581}}^1\times {\mathrm{142211}}^1$

素因数の和:159798

約数の個数: 16

約数和(自身を含む): 37505570760

約数和(自身を除く): 17503878032

約数列:

[1, 2, 4, 8, 17581, 35162, 70324, 140648, 142211, 284422, 568844, 1137688, 2500211591, 5000423182, 10000846364, 20001692728]

約数ペア:

[(1, 20001692728), (2, 10000846364), (4, 5000423182), (8, 2500211591), (17581, 1137688), (35162, 568844), (70324, 284422), (140648, 142211)]