2020459720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{27617}}^1$

素因数の和:27718

約数の個数: 64

約数和(自身を含む): 4772390400

約数和(自身を除く): 2751930680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 59, 62, 118, 124, 155, 236, 248, 295, 310, 472, 590, 620, 1180, 1240, 1829, 2360, 3658, 7316, 9145, 14632, 18290, 27617, 36580, 55234, 73160, 110468, 138085, 220936, 276170, 552340, 856127, 1104680, 1629403, 1712254, 3258806, 3424508, 4280635, 6517612, 6849016, 8147015, 8561270, 13035224, 16294030, 17122540, 32588060, 34245080, 50511493, 65176120, 101022986, 202045972, 252557465, 404091944, 505114930, 1010229860, 2020459720]

約数ペア:

[(1, 2020459720), (2, 1010229860), (4, 505114930), (5, 404091944), (8, 252557465), (10, 202045972), (20, 101022986), (31, 65176120), (40, 50511493), (59, 34245080), (62, 32588060), (118, 17122540), (124, 16294030), (155, 13035224), (236, 8561270), (248, 8147015), (295, 6849016), (310, 6517612), (472, 4280635), (590, 3424508), (620, 3258806), (1180, 1712254), (1240, 1629403), (1829, 1104680), (2360, 856127), (3658, 552340), (7316, 276170), (9145, 220936), (14632, 138085), (18290, 110468), (27617, 73160), (36580, 55234)]