31644520

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{7001}}^1$

素因数の和:7125

約数の個数: 32

約数和(自身を含む): 71840520

約数和(自身を除く): 40196000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 7001, 14002, 28004, 35005, 56008, 70010, 140020, 280040, 791113, 1582226, 3164452, 3955565, 6328904, 7911130, 15822260, 31644520]

約数ペア:

[(1, 31644520), (2, 15822260), (4, 7911130), (5, 6328904), (8, 3955565), (10, 3164452), (20, 1582226), (40, 791113), (113, 280040), (226, 140020), (452, 70010), (565, 56008), (904, 35005), (1130, 28004), (2260, 14002), (4520, 7001)]