19306880

素因数分解:

$2^7\times 5^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:427

約数の個数: 64

約数和(自身を含む): 46781280

約数和(自身を除く): 27474400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 311, 320, 388, 485, 622, 640, 776, 970, 1244, 1552, 1555, 1940, 2488, 3104, 3110, 3880, 4976, 6208, 6220, 7760, 9952, 12416, 12440, 15520, 19904, 24880, 30167, 31040, 39808, 49760, 60334, 62080, 99520, 120668, 150835, 199040, 241336, 301670, 482672, 603340, 965344, 1206680, 1930688, 2413360, 3861376, 4826720, 9653440, 19306880]

約数ペア:

[(1, 19306880), (2, 9653440), (4, 4826720), (5, 3861376), (8, 2413360), (10, 1930688), (16, 1206680), (20, 965344), (32, 603340), (40, 482672), (64, 301670), (80, 241336), (97, 199040), (128, 150835), (160, 120668), (194, 99520), (311, 62080), (320, 60334), (388, 49760), (485, 39808), (622, 31040), (640, 30167), (776, 24880), (970, 19904), (1244, 15520), (1552, 12440), (1555, 12416), (1940, 9952), (2488, 7760), (3104, 6220), (3110, 6208), (3880, 4976)]