1719620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 4209408

約数和(自身を除く): 2489788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 173, 284, 346, 355, 497, 692, 710, 865, 994, 1211, 1420, 1730, 1988, 2422, 2485, 3460, 4844, 4970, 6055, 9940, 12110, 12283, 24220, 24566, 49132, 61415, 85981, 122830, 171962, 245660, 343924, 429905, 859810, 1719620]

約数ペア:

[(1, 1719620), (2, 859810), (4, 429905), (5, 343924), (7, 245660), (10, 171962), (14, 122830), (20, 85981), (28, 61415), (35, 49132), (70, 24566), (71, 24220), (140, 12283), (142, 12110), (173, 9940), (284, 6055), (346, 4970), (355, 4844), (497, 3460), (692, 2485), (710, 2422), (865, 1988), (994, 1730), (1211, 1420)]