89469940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{9001}}^1$

素因数の和:9088

約数の個数: 48

約数和(自身を含む): 217776384

約数和(自身を除く): 128306444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9001, 9940, 18002, 36004, 45005, 63007, 90010, 126014, 180020, 252028, 315035, 630070, 639071, 1260140, 1278142, 2556284, 3195355, 4473497, 6390710, 8946994, 12781420, 17893988, 22367485, 44734970, 89469940]

約数ペア:

[(1, 89469940), (2, 44734970), (4, 22367485), (5, 17893988), (7, 12781420), (10, 8946994), (14, 6390710), (20, 4473497), (28, 3195355), (35, 2556284), (70, 1278142), (71, 1260140), (140, 639071), (142, 630070), (284, 315035), (355, 252028), (497, 180020), (710, 126014), (994, 90010), (1420, 63007), (1988, 45005), (2485, 36004), (4970, 18002), (9001, 9940)]