20180955

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2729}}^1$

素因数の和:2783

約数の個数: 32

約数和(自身を含む): 35380800

約数和(自身を除く): 15199845

約数列:

[1, 3, 5, 15, 17, 29, 51, 85, 87, 145, 255, 435, 493, 1479, 2465, 2729, 7395, 8187, 13645, 40935, 46393, 79141, 139179, 231965, 237423, 395705, 695895, 1187115, 1345397, 4036191, 6726985, 20180955]

約数ペア:

[(1, 20180955), (3, 6726985), (5, 4036191), (15, 1345397), (17, 1187115), (29, 695895), (51, 395705), (85, 237423), (87, 231965), (145, 139179), (255, 79141), (435, 46393), (493, 40935), (1479, 13645), (2465, 8187), (2729, 7395)]