5430440

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{389}}^1$

素因数の和:749

約数の個数: 32

約数和(自身を含む): 12285000

約数和(自身を除く): 6854560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 389, 698, 778, 1396, 1556, 1745, 1945, 2792, 3112, 3490, 3890, 6980, 7780, 13960, 15560, 135761, 271522, 543044, 678805, 1086088, 1357610, 2715220, 5430440]

約数ペア:

[(1, 5430440), (2, 2715220), (4, 1357610), (5, 1086088), (8, 678805), (10, 543044), (20, 271522), (40, 135761), (349, 15560), (389, 13960), (698, 7780), (778, 6980), (1396, 3890), (1556, 3490), (1745, 3112), (1945, 2792)]