204800820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{2311}}^1$

素因数の和:2541

約数の個数: 96

約数和(自身を含む): 658753536

約数和(自身を除く): 453952716

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 211, 420, 422, 633, 844, 1055, 1266, 1477, 2110, 2311, 2532, 2954, 3165, 4220, 4431, 4622, 5908, 6330, 6933, 7385, 8862, 9244, 11555, 12660, 13866, 14770, 16177, 17724, 22155, 23110, 27732, 29540, 32354, 34665, 44310, 46220, 48531, 64708, 69330, 80885, 88620, 97062, 138660, 161770, 194124, 242655, 323540, 485310, 487621, 970620, 975242, 1462863, 1950484, 2438105, 2925726, 3413347, 4876210, 5851452, 6826694, 7314315, 9752420, 10240041, 13653388, 14628630, 17066735, 20480082, 29257260, 34133470, 40960164, 51200205, 68266940, 102400410, 204800820]

約数ペア:

[(1, 204800820), (2, 102400410), (3, 68266940), (4, 51200205), (5, 40960164), (6, 34133470), (7, 29257260), (10, 20480082), (12, 17066735), (14, 14628630), (15, 13653388), (20, 10240041), (21, 9752420), (28, 7314315), (30, 6826694), (35, 5851452), (42, 4876210), (60, 3413347), (70, 2925726), (84, 2438105), (105, 1950484), (140, 1462863), (210, 975242), (211, 970620), (420, 487621), (422, 485310), (633, 323540), (844, 242655), (1055, 194124), (1266, 161770), (1477, 138660), (2110, 97062), (2311, 88620), (2532, 80885), (2954, 69330), (3165, 64708), (4220, 48531), (4431, 46220), (4622, 44310), (5908, 34665), (6330, 32354), (6933, 29540), (7385, 27732), (8862, 23110), (9244, 22155), (11555, 17724), (12660, 16177), (13866, 14770)]