28756400

素因数分解:

$2^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:151

約数の個数: 120

約数和(自身を含む): 74496720

約数和(自身を除く): 45740320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 37, 40, 50, 58, 67, 74, 80, 100, 116, 134, 145, 148, 185, 200, 232, 268, 290, 296, 335, 370, 400, 464, 536, 580, 592, 670, 725, 740, 925, 1072, 1073, 1160, 1340, 1450, 1480, 1675, 1850, 1943, 2146, 2320, 2479, 2680, 2900, 2960, 3350, 3700, 3886, 4292, 4958, 5360, 5365, 5800, 6700, 7400, 7772, 8584, 9715, 9916, 10730, 11600, 12395, 13400, 14800, 15544, 17168, 19430, 19832, 21460, 24790, 26800, 26825, 31088, 38860, 39664, 42920, 48575, 49580, 53650, 61975, 71891, 77720, 85840, 97150, 99160, 107300, 123950, 143782, 155440, 194300, 198320, 214600, 247900, 287564, 359455, 388600, 429200, 495800, 575128, 718910, 777200, 991600, 1150256, 1437820, 1797275, 2875640, 3594550, 5751280, 7189100, 14378200, 28756400]

約数ペア:

[(1, 28756400), (2, 14378200), (4, 7189100), (5, 5751280), (8, 3594550), (10, 2875640), (16, 1797275), (20, 1437820), (25, 1150256), (29, 991600), (37, 777200), (40, 718910), (50, 575128), (58, 495800), (67, 429200), (74, 388600), (80, 359455), (100, 287564), (116, 247900), (134, 214600), (145, 198320), (148, 194300), (185, 155440), (200, 143782), (232, 123950), (268, 107300), (290, 99160), (296, 97150), (335, 85840), (370, 77720), (400, 71891), (464, 61975), (536, 53650), (580, 49580), (592, 48575), (670, 42920), (725, 39664), (740, 38860), (925, 31088), (1072, 26825), (1073, 26800), (1160, 24790), (1340, 21460), (1450, 19832), (1480, 19430), (1675, 17168), (1850, 15544), (1943, 14800), (2146, 13400), (2320, 12395), (2479, 11600), (2680, 10730), (2900, 9916), (2960, 9715), (3350, 8584), (3700, 7772), (3886, 7400), (4292, 6700), (4958, 5800), (5360, 5365)]