18989832980

素因数分解:

$2^2\times 5^1\times {\mathrm{15803}}^1\times {\mathrm{60083}}^1$

素因数の和:75895

約数の個数: 24

約数和(自身を含む): 39881836512

約数和(自身を除く): 20892003532

約数列:

[1, 2, 4, 5, 10, 20, 15803, 31606, 60083, 63212, 79015, 120166, 158030, 240332, 300415, 316060, 600830, 1201660, 949491649, 1898983298, 3797966596, 4747458245, 9494916490, 18989832980]

約数ペア:

[(1, 18989832980), (2, 9494916490), (4, 4747458245), (5, 3797966596), (10, 1898983298), (20, 949491649), (15803, 1201660), (31606, 600830), (60083, 316060), (63212, 300415), (79015, 240332), (120166, 158030)]