131152520

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{13063}}^1$

素因数の和:13325

約数の個数: 32

約数和(自身を含む): 296291520

約数和(自身を除く): 165139000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 13063, 26126, 52252, 65315, 104504, 130630, 261260, 522520, 3278813, 6557626, 13115252, 16394065, 26230504, 32788130, 65576260, 131152520]

約数ペア:

[(1, 131152520), (2, 65576260), (4, 32788130), (5, 26230504), (8, 16394065), (10, 13115252), (20, 6557626), (40, 3278813), (251, 522520), (502, 261260), (1004, 130630), (1255, 104504), (2008, 65315), (2510, 52252), (5020, 26126), (10040, 13063)]