2256380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 5515776

約数和(自身を除く): 3259396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 227, 284, 355, 454, 497, 710, 908, 994, 1135, 1420, 1589, 1988, 2270, 2485, 3178, 4540, 4970, 6356, 7945, 9940, 15890, 16117, 31780, 32234, 64468, 80585, 112819, 161170, 225638, 322340, 451276, 564095, 1128190, 2256380]

約数ペア:

[(1, 2256380), (2, 1128190), (4, 564095), (5, 451276), (7, 322340), (10, 225638), (14, 161170), (20, 112819), (28, 80585), (35, 64468), (70, 32234), (71, 31780), (140, 16117), (142, 15890), (227, 9940), (284, 7945), (355, 6356), (454, 4970), (497, 4540), (710, 3178), (908, 2485), (994, 2270), (1135, 1988), (1420, 1589)]