13642840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20063}}^1$

素因数の和:20091

約数の個数: 32

約数和(自身を含む): 32503680

約数和(自身を除く): 18860840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 20063, 40126, 80252, 100315, 160504, 200630, 341071, 401260, 682142, 802520, 1364284, 1705355, 2728568, 3410710, 6821420, 13642840]

約数ペア:

[(1, 13642840), (2, 6821420), (4, 3410710), (5, 2728568), (8, 1705355), (10, 1364284), (17, 802520), (20, 682142), (34, 401260), (40, 341071), (68, 200630), (85, 160504), (136, 100315), (170, 80252), (340, 40126), (680, 20063)]