1331192920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{811703}}^1$

素因数の和:811755

約数の個数: 32

約数和(自身を含む): 3068241120

約数和(自身を除く): 1737048200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 811703, 1623406, 3246812, 4058515, 6493624, 8117030, 16234060, 32468120, 33279823, 66559646, 133119292, 166399115, 266238584, 332798230, 665596460, 1331192920]

約数ペア:

[(1, 1331192920), (2, 665596460), (4, 332798230), (5, 266238584), (8, 166399115), (10, 133119292), (20, 66559646), (40, 33279823), (41, 32468120), (82, 16234060), (164, 8117030), (205, 6493624), (328, 4058515), (410, 3246812), (820, 1623406), (1640, 811703)]