2021293780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{19181}}^1$

素因数の和:19680

約数の個数: 48

約数和(自身を含む): 4640509440

約数和(自身を除く): 2619215660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 479, 958, 1916, 2395, 4790, 5269, 9580, 10538, 19181, 21076, 26345, 38362, 52690, 76724, 95905, 105380, 191810, 210991, 383620, 421982, 843964, 1054955, 2109910, 4219820, 9187699, 18375398, 36750796, 45938495, 91876990, 101064689, 183753980, 202129378, 404258756, 505323445, 1010646890, 2021293780]

約数ペア:

[(1, 2021293780), (2, 1010646890), (4, 505323445), (5, 404258756), (10, 202129378), (11, 183753980), (20, 101064689), (22, 91876990), (44, 45938495), (55, 36750796), (110, 18375398), (220, 9187699), (479, 4219820), (958, 2109910), (1916, 1054955), (2395, 843964), (4790, 421982), (5269, 383620), (9580, 210991), (10538, 191810), (19181, 105380), (21076, 95905), (26345, 76724), (38362, 52690)]