20383665

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{997}}^1$

素因数の和:1081

約数の個数: 32

約数和(自身を含む): 34490880

約数和(自身を除く): 14107215

約数列:

[1, 3, 5, 15, 29, 47, 87, 141, 145, 235, 435, 705, 997, 1363, 2991, 4089, 4985, 6815, 14955, 20445, 28913, 46859, 86739, 140577, 144565, 234295, 433695, 702885, 1358911, 4076733, 6794555, 20383665]

約数ペア:

[(1, 20383665), (3, 6794555), (5, 4076733), (15, 1358911), (29, 702885), (47, 433695), (87, 234295), (141, 144565), (145, 140577), (235, 86739), (435, 46859), (705, 28913), (997, 20445), (1363, 14955), (2991, 6815), (4089, 4985)]