205686520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{30427}}^1$

素因数の和:30464

約数の個数: 48

約数和(自身を含む): 501149160

約数和(自身を除く): 295462640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 30427, 60854, 121708, 152135, 243416, 304270, 395551, 608540, 791102, 1217080, 1582204, 1977755, 3164408, 3955510, 5142163, 7911020, 10284326, 15822040, 20568652, 25710815, 41137304, 51421630, 102843260, 205686520]

約数ペア:

[(1, 205686520), (2, 102843260), (4, 51421630), (5, 41137304), (8, 25710815), (10, 20568652), (13, 15822040), (20, 10284326), (26, 7911020), (40, 5142163), (52, 3955510), (65, 3164408), (104, 1977755), (130, 1582204), (169, 1217080), (260, 791102), (338, 608540), (520, 395551), (676, 304270), (845, 243416), (1352, 152135), (1690, 121708), (3380, 60854), (6760, 30427)]