15121900

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 34765136

約数和(自身を除く): 19643236

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 61, 67, 74, 100, 122, 134, 148, 185, 244, 268, 305, 335, 370, 610, 670, 740, 925, 1220, 1340, 1525, 1675, 1850, 2257, 2479, 3050, 3350, 3700, 4087, 4514, 4958, 6100, 6700, 8174, 9028, 9916, 11285, 12395, 16348, 20435, 22570, 24790, 40870, 45140, 49580, 56425, 61975, 81740, 102175, 112850, 123950, 151219, 204350, 225700, 247900, 302438, 408700, 604876, 756095, 1512190, 3024380, 3780475, 7560950, 15121900]

約数ペア:

[(1, 15121900), (2, 7560950), (4, 3780475), (5, 3024380), (10, 1512190), (20, 756095), (25, 604876), (37, 408700), (50, 302438), (61, 247900), (67, 225700), (74, 204350), (100, 151219), (122, 123950), (134, 112850), (148, 102175), (185, 81740), (244, 61975), (268, 56425), (305, 49580), (335, 45140), (370, 40870), (610, 24790), (670, 22570), (740, 20435), (925, 16348), (1220, 12395), (1340, 11285), (1525, 9916), (1675, 9028), (1850, 8174), (2257, 6700), (2479, 6100), (3050, 4958), (3350, 4514), (3700, 4087)]