20173288

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 43502400

約数和(自身を除く): 23329112

約数列:

[1, 2, 4, 8, 17, 19, 34, 37, 38, 68, 74, 76, 136, 148, 152, 211, 296, 323, 422, 629, 646, 703, 844, 1258, 1292, 1406, 1688, 2516, 2584, 2812, 3587, 4009, 5032, 5624, 7174, 7807, 8018, 11951, 14348, 15614, 16036, 23902, 28696, 31228, 32072, 47804, 62456, 68153, 95608, 132719, 136306, 148333, 265438, 272612, 296666, 530876, 545224, 593332, 1061752, 1186664, 2521661, 5043322, 10086644, 20173288]

約数ペア:

[(1, 20173288), (2, 10086644), (4, 5043322), (8, 2521661), (17, 1186664), (19, 1061752), (34, 593332), (37, 545224), (38, 530876), (68, 296666), (74, 272612), (76, 265438), (136, 148333), (148, 136306), (152, 132719), (211, 95608), (296, 68153), (323, 62456), (422, 47804), (629, 32072), (646, 31228), (703, 28696), (844, 23902), (1258, 16036), (1292, 15614), (1406, 14348), (1688, 11951), (2516, 8018), (2584, 7807), (2812, 7174), (3587, 5624), (4009, 5032)]