407001920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{431}}^1$

素因数の和:688

約数の個数: 112

約数和(自身を含む): 1050755328

約数和(自身を除く): 643753408

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 227, 260, 320, 416, 431, 454, 520, 832, 862, 908, 1040, 1135, 1724, 1816, 2080, 2155, 2270, 2951, 3448, 3632, 4160, 4310, 4540, 5603, 5902, 6896, 7264, 8620, 9080, 11206, 11804, 13792, 14528, 14755, 17240, 18160, 22412, 23608, 27584, 28015, 29510, 34480, 36320, 44824, 47216, 56030, 59020, 68960, 72640, 89648, 94432, 97837, 112060, 118040, 137920, 179296, 188864, 195674, 224120, 236080, 358592, 391348, 448240, 472160, 489185, 782696, 896480, 944320, 978370, 1271881, 1565392, 1792960, 1956740, 2543762, 3130784, 3913480, 5087524, 6261568, 6359405, 7826960, 10175048, 12718810, 15653920, 20350096, 25437620, 31307840, 40700192, 50875240, 81400384, 101750480, 203500960, 407001920]

約数ペア:

[(1, 407001920), (2, 203500960), (4, 101750480), (5, 81400384), (8, 50875240), (10, 40700192), (13, 31307840), (16, 25437620), (20, 20350096), (26, 15653920), (32, 12718810), (40, 10175048), (52, 7826960), (64, 6359405), (65, 6261568), (80, 5087524), (104, 3913480), (130, 3130784), (160, 2543762), (208, 1956740), (227, 1792960), (260, 1565392), (320, 1271881), (416, 978370), (431, 944320), (454, 896480), (520, 782696), (832, 489185), (862, 472160), (908, 448240), (1040, 391348), (1135, 358592), (1724, 236080), (1816, 224120), (2080, 195674), (2155, 188864), (2270, 179296), (2951, 137920), (3448, 118040), (3632, 112060), (4160, 97837), (4310, 94432), (4540, 89648), (5603, 72640), (5902, 68960), (6896, 59020), (7264, 56030), (8620, 47216), (9080, 44824), (11206, 36320), (11804, 34480), (13792, 29510), (14528, 28015), (14755, 27584), (17240, 23608), (18160, 22412)]