217835940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{518657}}^1$

素因数の和:518676

約数の個数: 48

約数和(自身を含む): 697076352

約数和(自身を除く): 479240412

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 518657, 1037314, 1555971, 2074628, 2593285, 3111942, 3630599, 5186570, 6223884, 7261198, 7779855, 10373140, 10891797, 14522396, 15559710, 18152995, 21783594, 31119420, 36305990, 43567188, 54458985, 72611980, 108917970, 217835940]

約数ペア:

[(1, 217835940), (2, 108917970), (3, 72611980), (4, 54458985), (5, 43567188), (6, 36305990), (7, 31119420), (10, 21783594), (12, 18152995), (14, 15559710), (15, 14522396), (20, 10891797), (21, 10373140), (28, 7779855), (30, 7261198), (35, 6223884), (42, 5186570), (60, 3630599), (70, 3111942), (84, 2593285), (105, 2074628), (140, 1555971), (210, 1037314), (420, 518657)]