2839100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 7030800

約数和(自身を除く): 4191700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 29, 44, 50, 55, 58, 89, 100, 110, 116, 145, 178, 220, 275, 290, 319, 356, 445, 550, 580, 638, 725, 890, 979, 1100, 1276, 1450, 1595, 1780, 1958, 2225, 2581, 2900, 3190, 3916, 4450, 4895, 5162, 6380, 7975, 8900, 9790, 10324, 12905, 15950, 19580, 24475, 25810, 28391, 31900, 48950, 51620, 56782, 64525, 97900, 113564, 129050, 141955, 258100, 283910, 567820, 709775, 1419550, 2839100]

約数ペア:

[(1, 2839100), (2, 1419550), (4, 709775), (5, 567820), (10, 283910), (11, 258100), (20, 141955), (22, 129050), (25, 113564), (29, 97900), (44, 64525), (50, 56782), (55, 51620), (58, 48950), (89, 31900), (100, 28391), (110, 25810), (116, 24475), (145, 19580), (178, 15950), (220, 12905), (275, 10324), (290, 9790), (319, 8900), (356, 7975), (445, 6380), (550, 5162), (580, 4895), (638, 4450), (725, 3916), (890, 3190), (979, 2900), (1100, 2581), (1276, 2225), (1450, 1958), (1595, 1780)]