4403420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 10741248

約数和(自身を除く): 6337828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 443, 497, 710, 886, 994, 1420, 1772, 1988, 2215, 2485, 3101, 4430, 4970, 6202, 8860, 9940, 12404, 15505, 31010, 31453, 62020, 62906, 125812, 157265, 220171, 314530, 440342, 629060, 880684, 1100855, 2201710, 4403420]

約数ペア:

[(1, 4403420), (2, 2201710), (4, 1100855), (5, 880684), (7, 629060), (10, 440342), (14, 314530), (20, 220171), (28, 157265), (35, 125812), (70, 62906), (71, 62020), (140, 31453), (142, 31010), (284, 15505), (355, 12404), (443, 9940), (497, 8860), (710, 6202), (886, 4970), (994, 4430), (1420, 3101), (1772, 2485), (1988, 2215)]