19001881040

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{1326947}}^1$

素因数の和:1327139

約数の個数: 40

約数和(自身を含む): 44426219040

約数和(自身を除く): 25424338000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 358, 716, 895, 1432, 1790, 2864, 3580, 7160, 14320, 1326947, 2653894, 5307788, 6634735, 10615576, 13269470, 21231152, 26538940, 53077880, 106155760, 237523513, 475047026, 950094052, 1187617565, 1900188104, 2375235130, 3800376208, 4750470260, 9500940520, 19001881040]

約数ペア:

[(1, 19001881040), (2, 9500940520), (4, 4750470260), (5, 3800376208), (8, 2375235130), (10, 1900188104), (16, 1187617565), (20, 950094052), (40, 475047026), (80, 237523513), (179, 106155760), (358, 53077880), (716, 26538940), (895, 21231152), (1432, 13269470), (1790, 10615576), (2864, 6634735), (3580, 5307788), (7160, 2653894), (14320, 1326947)]