20163744400

素因数分解:

$2^4\times 5^2\times {\mathrm{71}}^1\times {\mathrm{709991}}^1$

素因数の和:710080

約数の個数: 60

約数和(自身を含む): 49125766464

約数和(自身を除く): 28962022064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 142, 200, 284, 355, 400, 568, 710, 1136, 1420, 1775, 2840, 3550, 5680, 7100, 14200, 28400, 709991, 1419982, 2839964, 3549955, 5679928, 7099910, 11359856, 14199820, 17749775, 28399640, 35499550, 50409361, 56799280, 70999100, 100818722, 141998200, 201637444, 252046805, 283996400, 403274888, 504093610, 806549776, 1008187220, 1260234025, 2016374440, 2520468050, 4032748880, 5040936100, 10081872200, 20163744400]

約数ペア:

[(1, 20163744400), (2, 10081872200), (4, 5040936100), (5, 4032748880), (8, 2520468050), (10, 2016374440), (16, 1260234025), (20, 1008187220), (25, 806549776), (40, 504093610), (50, 403274888), (71, 283996400), (80, 252046805), (100, 201637444), (142, 141998200), (200, 100818722), (284, 70999100), (355, 56799280), (400, 50409361), (568, 35499550), (710, 28399640), (1136, 17749775), (1420, 14199820), (1775, 11359856), (2840, 7099910), (3550, 5679928), (5680, 3549955), (7100, 2839964), (14200, 1419982), (28400, 709991)]