30987500

素因数分解:

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

素因数の和:133

約数の個数: 72

約数和(自身を含む): 70651728

約数和(自身を除く): 39664228

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 67, 74, 100, 125, 134, 148, 185, 250, 268, 335, 370, 500, 625, 670, 740, 925, 1250, 1340, 1675, 1850, 2479, 2500, 3125, 3350, 3700, 4625, 4958, 6250, 6700, 8375, 9250, 9916, 12395, 12500, 16750, 18500, 23125, 24790, 33500, 41875, 46250, 49580, 61975, 83750, 92500, 115625, 123950, 167500, 209375, 231250, 247900, 309875, 418750, 462500, 619750, 837500, 1239500, 1549375, 3098750, 6197500, 7746875, 15493750, 30987500]

約数ペア:

[(1, 30987500), (2, 15493750), (4, 7746875), (5, 6197500), (10, 3098750), (20, 1549375), (25, 1239500), (37, 837500), (50, 619750), (67, 462500), (74, 418750), (100, 309875), (125, 247900), (134, 231250), (148, 209375), (185, 167500), (250, 123950), (268, 115625), (335, 92500), (370, 83750), (500, 61975), (625, 49580), (670, 46250), (740, 41875), (925, 33500), (1250, 24790), (1340, 23125), (1675, 18500), (1850, 16750), (2479, 12500), (2500, 12395), (3125, 9916), (3350, 9250), (3700, 8375), (4625, 6700), (4958, 6250)]