12886780

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 28103040

約数和(自身を除く): 15216260

約数列:

[1, 2, 4, 5, 10, 20, 59, 67, 118, 134, 163, 236, 268, 295, 326, 335, 590, 652, 670, 815, 1180, 1340, 1630, 3260, 3953, 7906, 9617, 10921, 15812, 19234, 19765, 21842, 38468, 39530, 43684, 48085, 54605, 79060, 96170, 109210, 192340, 218420, 644339, 1288678, 2577356, 3221695, 6443390, 12886780]

約数ペア:

[(1, 12886780), (2, 6443390), (4, 3221695), (5, 2577356), (10, 1288678), (20, 644339), (59, 218420), (67, 192340), (118, 109210), (134, 96170), (163, 79060), (236, 54605), (268, 48085), (295, 43684), (326, 39530), (335, 38468), (590, 21842), (652, 19765), (670, 19234), (815, 15812), (1180, 10921), (1340, 9617), (1630, 7906), (3260, 3953)]