128331040

素因数分解:

$2^5\times 5^1\times {\mathrm{311}}^1\times {\mathrm{2579}}^1$

素因数の和:2905

約数の個数: 48

約数和(自身を含む): 304274880

約数和(自身を除く): 175943840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 311, 622, 1244, 1555, 2488, 2579, 3110, 4976, 5158, 6220, 9952, 10316, 12440, 12895, 20632, 24880, 25790, 41264, 49760, 51580, 82528, 103160, 206320, 412640, 802069, 1604138, 3208276, 4010345, 6416552, 8020690, 12833104, 16041380, 25666208, 32082760, 64165520, 128331040]

約数ペア:

[(1, 128331040), (2, 64165520), (4, 32082760), (5, 25666208), (8, 16041380), (10, 12833104), (16, 8020690), (20, 6416552), (32, 4010345), (40, 3208276), (80, 1604138), (160, 802069), (311, 412640), (622, 206320), (1244, 103160), (1555, 82528), (2488, 51580), (2579, 49760), (3110, 41264), (4976, 25790), (5158, 24880), (6220, 20632), (9952, 12895), (10316, 12440)]