31421288

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{151}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 64159200

約数和(自身を除く): 32737912

約数列:

[1, 2, 4, 8, 19, 37, 38, 74, 76, 148, 151, 152, 296, 302, 604, 703, 1208, 1369, 1406, 2738, 2812, 2869, 5476, 5587, 5624, 5738, 10952, 11174, 11476, 22348, 22952, 26011, 44696, 52022, 104044, 106153, 206719, 208088, 212306, 413438, 424612, 826876, 849224, 1653752, 3927661, 7855322, 15710644, 31421288]

約数ペア:

[(1, 31421288), (2, 15710644), (4, 7855322), (8, 3927661), (19, 1653752), (37, 849224), (38, 826876), (74, 424612), (76, 413438), (148, 212306), (151, 208088), (152, 206719), (296, 106153), (302, 104044), (604, 52022), (703, 44696), (1208, 26011), (1369, 22952), (1406, 22348), (2738, 11476), (2812, 11174), (2869, 10952), (5476, 5738), (5587, 5624)]