18902375

素因数分解:

$5^3\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:180

約数の個数: 32

約数和(自身を含む): 24992448

約数和(自身を除く): 6090073

約数列:

[1, 5, 25, 37, 61, 67, 125, 185, 305, 335, 925, 1525, 1675, 2257, 2479, 4087, 4625, 7625, 8375, 11285, 12395, 20435, 56425, 61975, 102175, 151219, 282125, 309875, 510875, 756095, 3780475, 18902375]

約数ペア:

[(1, 18902375), (5, 3780475), (25, 756095), (37, 510875), (61, 309875), (67, 282125), (125, 151219), (185, 102175), (305, 61975), (335, 56425), (925, 20435), (1525, 12395), (1675, 11285), (2257, 8375), (2479, 7625), (4087, 4625)]