56428880

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{2131}}^1$

素因数の和:2475

約数の個数: 40

約数和(自身を含む): 131655264

約数和(自身を除く): 75226384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 1324, 1655, 2131, 2648, 3310, 4262, 5296, 6620, 8524, 10655, 13240, 17048, 21310, 26480, 34096, 42620, 85240, 170480, 705361, 1410722, 2821444, 3526805, 5642888, 7053610, 11285776, 14107220, 28214440, 56428880]

約数ペア:

[(1, 56428880), (2, 28214440), (4, 14107220), (5, 11285776), (8, 7053610), (10, 5642888), (16, 3526805), (20, 2821444), (40, 1410722), (80, 705361), (331, 170480), (662, 85240), (1324, 42620), (1655, 34096), (2131, 26480), (2648, 21310), (3310, 17048), (4262, 13240), (5296, 10655), (6620, 8524)]