18812260

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 40783680

約数和(自身を除く): 21971420

約数列:

[1, 2, 4, 5, 10, 20, 67, 101, 134, 139, 202, 268, 278, 335, 404, 505, 556, 670, 695, 1010, 1340, 1390, 2020, 2780, 6767, 9313, 13534, 14039, 18626, 27068, 28078, 33835, 37252, 46565, 56156, 67670, 70195, 93130, 135340, 140390, 186260, 280780, 940613, 1881226, 3762452, 4703065, 9406130, 18812260]

約数ペア:

[(1, 18812260), (2, 9406130), (4, 4703065), (5, 3762452), (10, 1881226), (20, 940613), (67, 280780), (101, 186260), (134, 140390), (139, 135340), (202, 93130), (268, 70195), (278, 67670), (335, 56156), (404, 46565), (505, 37252), (556, 33835), (670, 28078), (695, 27068), (1010, 18626), (1340, 14039), (1390, 13534), (2020, 9313), (2780, 6767)]