25259720

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6131}}^1$

素因数の和:6245

約数の個数: 32

約数和(自身を含む): 57395520

約数和(自身を除く): 32135800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 6131, 12262, 24524, 30655, 49048, 61310, 122620, 245240, 631493, 1262986, 2525972, 3157465, 5051944, 6314930, 12629860, 25259720]

約数ペア:

[(1, 25259720), (2, 12629860), (4, 6314930), (5, 5051944), (8, 3157465), (10, 2525972), (20, 1262986), (40, 631493), (103, 245240), (206, 122620), (412, 61310), (515, 49048), (824, 30655), (1030, 24524), (2060, 12262), (4120, 6131)]