202012040

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{857}}^1$

素因数の和:1022

約数の個数: 64

約数和(自身を含む): 467026560

約数和(自身を除く): 265014520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 83, 142, 166, 284, 332, 355, 415, 568, 664, 710, 830, 857, 1420, 1660, 1714, 2840, 3320, 3428, 4285, 5893, 6856, 8570, 11786, 17140, 23572, 29465, 34280, 47144, 58930, 60847, 71131, 117860, 121694, 142262, 235720, 243388, 284524, 304235, 355655, 486776, 569048, 608470, 711310, 1216940, 1422620, 2433880, 2845240, 5050301, 10100602, 20201204, 25251505, 40402408, 50503010, 101006020, 202012040]

約数ペア:

[(1, 202012040), (2, 101006020), (4, 50503010), (5, 40402408), (8, 25251505), (10, 20201204), (20, 10100602), (40, 5050301), (71, 2845240), (83, 2433880), (142, 1422620), (166, 1216940), (284, 711310), (332, 608470), (355, 569048), (415, 486776), (568, 355655), (664, 304235), (710, 284524), (830, 243388), (857, 235720), (1420, 142262), (1660, 121694), (1714, 117860), (2840, 71131), (3320, 60847), (3428, 58930), (4285, 47144), (5893, 34280), (6856, 29465), (8570, 23572), (11786, 17140)]