25125500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1621}}^1$

素因数の和:1671

約数の個数: 48

約数和(自身を含む): 56679168

約数和(自身を除く): 31553668

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 775, 1550, 1621, 3100, 3242, 3875, 6484, 7750, 8105, 15500, 16210, 32420, 40525, 50251, 81050, 100502, 162100, 201004, 202625, 251255, 405250, 502510, 810500, 1005020, 1256275, 2512550, 5025100, 6281375, 12562750, 25125500]

約数ペア:

[(1, 25125500), (2, 12562750), (4, 6281375), (5, 5025100), (10, 2512550), (20, 1256275), (25, 1005020), (31, 810500), (50, 502510), (62, 405250), (100, 251255), (124, 202625), (125, 201004), (155, 162100), (250, 100502), (310, 81050), (500, 50251), (620, 40525), (775, 32420), (1550, 16210), (1621, 15500), (3100, 8105), (3242, 7750), (3875, 6484)]