123950000

素因数分解:

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

素因数の和:137

約数の個数: 120

約数和(自身を含む): 312886224

約数和(自身を除く): 188936224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 37, 40, 50, 67, 74, 80, 100, 125, 134, 148, 185, 200, 250, 268, 296, 335, 370, 400, 500, 536, 592, 625, 670, 740, 925, 1000, 1072, 1250, 1340, 1480, 1675, 1850, 2000, 2479, 2500, 2680, 2960, 3125, 3350, 3700, 4625, 4958, 5000, 5360, 6250, 6700, 7400, 8375, 9250, 9916, 10000, 12395, 12500, 13400, 14800, 16750, 18500, 19832, 23125, 24790, 25000, 26800, 33500, 37000, 39664, 41875, 46250, 49580, 50000, 61975, 67000, 74000, 83750, 92500, 99160, 115625, 123950, 134000, 167500, 185000, 198320, 209375, 231250, 247900, 309875, 335000, 370000, 418750, 462500, 495800, 619750, 670000, 837500, 925000, 991600, 1239500, 1549375, 1675000, 1850000, 2479000, 3098750, 3350000, 4958000, 6197500, 7746875, 12395000, 15493750, 24790000, 30987500, 61975000, 123950000]

約数ペア:

[(1, 123950000), (2, 61975000), (4, 30987500), (5, 24790000), (8, 15493750), (10, 12395000), (16, 7746875), (20, 6197500), (25, 4958000), (37, 3350000), (40, 3098750), (50, 2479000), (67, 1850000), (74, 1675000), (80, 1549375), (100, 1239500), (125, 991600), (134, 925000), (148, 837500), (185, 670000), (200, 619750), (250, 495800), (268, 462500), (296, 418750), (335, 370000), (370, 335000), (400, 309875), (500, 247900), (536, 231250), (592, 209375), (625, 198320), (670, 185000), (740, 167500), (925, 134000), (1000, 123950), (1072, 115625), (1250, 99160), (1340, 92500), (1480, 83750), (1675, 74000), (1850, 67000), (2000, 61975), (2479, 50000), (2500, 49580), (2680, 46250), (2960, 41875), (3125, 39664), (3350, 37000), (3700, 33500), (4625, 26800), (4958, 25000), (5000, 24790), (5360, 23125), (6250, 19832), (6700, 18500), (7400, 16750), (8375, 14800), (9250, 13400), (9916, 12500), (10000, 12395)]