71891000

素因数分解:

$2^3\times 5^3\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:154

約数の個数: 128

約数和(自身を含む): 181396800

約数和(自身を除く): 109505800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 37, 40, 50, 58, 67, 74, 100, 116, 125, 134, 145, 148, 185, 200, 232, 250, 268, 290, 296, 335, 370, 500, 536, 580, 670, 725, 740, 925, 1000, 1073, 1160, 1340, 1450, 1480, 1675, 1850, 1943, 2146, 2479, 2680, 2900, 3350, 3625, 3700, 3886, 4292, 4625, 4958, 5365, 5800, 6700, 7250, 7400, 7772, 8375, 8584, 9250, 9715, 9916, 10730, 12395, 13400, 14500, 15544, 16750, 18500, 19430, 19832, 21460, 24790, 26825, 29000, 33500, 37000, 38860, 42920, 48575, 49580, 53650, 61975, 67000, 71891, 77720, 97150, 99160, 107300, 123950, 134125, 143782, 194300, 214600, 242875, 247900, 268250, 287564, 309875, 359455, 388600, 485750, 495800, 536500, 575128, 619750, 718910, 971500, 1073000, 1239500, 1437820, 1797275, 1943000, 2479000, 2875640, 3594550, 7189100, 8986375, 14378200, 17972750, 35945500, 71891000]

約数ペア:

[(1, 71891000), (2, 35945500), (4, 17972750), (5, 14378200), (8, 8986375), (10, 7189100), (20, 3594550), (25, 2875640), (29, 2479000), (37, 1943000), (40, 1797275), (50, 1437820), (58, 1239500), (67, 1073000), (74, 971500), (100, 718910), (116, 619750), (125, 575128), (134, 536500), (145, 495800), (148, 485750), (185, 388600), (200, 359455), (232, 309875), (250, 287564), (268, 268250), (290, 247900), (296, 242875), (335, 214600), (370, 194300), (500, 143782), (536, 134125), (580, 123950), (670, 107300), (725, 99160), (740, 97150), (925, 77720), (1000, 71891), (1073, 67000), (1160, 61975), (1340, 53650), (1450, 49580), (1480, 48575), (1675, 42920), (1850, 38860), (1943, 37000), (2146, 33500), (2479, 29000), (2680, 26825), (2900, 24790), (3350, 21460), (3625, 19832), (3700, 19430), (3886, 18500), (4292, 16750), (4625, 15544), (4958, 14500), (5365, 13400), (5800, 12395), (6700, 10730), (7250, 9916), (7400, 9715), (7772, 9250), (8375, 8584)]