201906875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:681

約数の個数: 40

約数和(自身を含む): 276211584

約数和(自身を除く): 74304709

約数列:

[1, 5, 17, 25, 31, 85, 125, 155, 425, 527, 613, 625, 775, 2125, 2635, 3065, 3875, 10421, 10625, 13175, 15325, 19003, 19375, 52105, 65875, 76625, 95015, 260525, 323051, 329375, 383125, 475075, 1302625, 1615255, 2375375, 6513125, 8076275, 11876875, 40381375, 201906875]

約数ペア:

[(1, 201906875), (5, 40381375), (17, 11876875), (25, 8076275), (31, 6513125), (85, 2375375), (125, 1615255), (155, 1302625), (425, 475075), (527, 383125), (613, 329375), (625, 323051), (775, 260525), (2125, 95015), (2635, 76625), (3065, 65875), (3875, 52105), (10421, 19375), (10625, 19003), (13175, 15325)]