25881250

素因数分解:

$2^1\times 5^5\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:169

約数の個数: 48

約数和(自身を含む): 50199912

約数和(自身を除く): 24318662

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 101, 125, 202, 205, 250, 410, 505, 625, 1010, 1025, 1250, 2050, 2525, 3125, 4141, 5050, 5125, 6250, 8282, 10250, 12625, 20705, 25250, 25625, 41410, 51250, 63125, 103525, 126250, 128125, 207050, 256250, 315625, 517625, 631250, 1035250, 2588125, 5176250, 12940625, 25881250]

約数ペア:

[(1, 25881250), (2, 12940625), (5, 5176250), (10, 2588125), (25, 1035250), (41, 631250), (50, 517625), (82, 315625), (101, 256250), (125, 207050), (202, 128125), (205, 126250), (250, 103525), (410, 63125), (505, 51250), (625, 41410), (1010, 25625), (1025, 25250), (1250, 20705), (2050, 12625), (2525, 10250), (3125, 8282), (4141, 6250), (5050, 5125)]