20380965

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{829}}^1$

素因数の和:997

約数の個数: 32

約数和(自身を含む): 35856000

約数和(自身を除く): 15475035

約数列:

[1, 3, 5, 11, 15, 33, 55, 149, 165, 447, 745, 829, 1639, 2235, 2487, 4145, 4917, 8195, 9119, 12435, 24585, 27357, 45595, 123521, 136785, 370563, 617605, 1358731, 1852815, 4076193, 6793655, 20380965]

約数ペア:

[(1, 20380965), (3, 6793655), (5, 4076193), (11, 1852815), (15, 1358731), (33, 617605), (55, 370563), (149, 136785), (165, 123521), (447, 45595), (745, 27357), (829, 24585), (1639, 12435), (2235, 9119), (2487, 8195), (4145, 4917)]