81607040

素因数分解:

$2^7\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2713}}^1$

素因数の和:2779

約数の個数: 64

約数和(自身を含む): 199316160

約数和(自身を除く): 117709120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 320, 376, 470, 640, 752, 940, 1504, 1880, 2713, 3008, 3760, 5426, 6016, 7520, 10852, 13565, 15040, 21704, 27130, 30080, 43408, 54260, 86816, 108520, 127511, 173632, 217040, 255022, 347264, 434080, 510044, 637555, 868160, 1020088, 1275110, 1736320, 2040176, 2550220, 4080352, 5100440, 8160704, 10200880, 16321408, 20401760, 40803520, 81607040]

約数ペア:

[(1, 81607040), (2, 40803520), (4, 20401760), (5, 16321408), (8, 10200880), (10, 8160704), (16, 5100440), (20, 4080352), (32, 2550220), (40, 2040176), (47, 1736320), (64, 1275110), (80, 1020088), (94, 868160), (128, 637555), (160, 510044), (188, 434080), (235, 347264), (320, 255022), (376, 217040), (470, 173632), (640, 127511), (752, 108520), (940, 86816), (1504, 54260), (1880, 43408), (2713, 30080), (3008, 27130), (3760, 21704), (5426, 15040), (6016, 13565), (7520, 10852)]