18789250

素因数分解:

$2^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{4421}}^1$

素因数の和:4455

約数の個数: 32

約数和(自身を含む): 37250928

約数和(自身を除く): 18461678

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 250, 425, 850, 2125, 4250, 4421, 8842, 22105, 44210, 75157, 110525, 150314, 221050, 375785, 552625, 751570, 1105250, 1878925, 3757850, 9394625, 18789250]

約数ペア:

[(1, 18789250), (2, 9394625), (5, 3757850), (10, 1878925), (17, 1105250), (25, 751570), (34, 552625), (50, 375785), (85, 221050), (125, 150314), (170, 110525), (250, 75157), (425, 44210), (850, 22105), (2125, 8842), (4250, 4421)]