280803440

素因数分解:

$2^4\times 5^1\times {\mathrm{1493}}^1\times {\mathrm{2351}}^1$

素因数の和:3857

約数の個数: 40

約数和(自身を含む): 653583168

約数和(自身を除く): 372779728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1493, 2351, 2986, 4702, 5972, 7465, 9404, 11755, 11944, 14930, 18808, 23510, 23888, 29860, 37616, 47020, 59720, 94040, 119440, 188080, 3510043, 7020086, 14040172, 17550215, 28080344, 35100430, 56160688, 70200860, 140401720, 280803440]

約数ペア:

[(1, 280803440), (2, 140401720), (4, 70200860), (5, 56160688), (8, 35100430), (10, 28080344), (16, 17550215), (20, 14040172), (40, 7020086), (80, 3510043), (1493, 188080), (2351, 119440), (2986, 94040), (4702, 59720), (5972, 47020), (7465, 37616), (9404, 29860), (11755, 23888), (11944, 23510), (14930, 18808)]