80700880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:213

約数の個数: 120

約数和(自身を含む): 209129472

約数和(自身を除く): 128428592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 47, 52, 65, 80, 94, 104, 127, 130, 169, 188, 208, 235, 254, 260, 338, 376, 470, 508, 520, 611, 635, 676, 752, 845, 940, 1016, 1040, 1222, 1270, 1352, 1651, 1690, 1880, 2032, 2444, 2540, 2704, 3055, 3302, 3380, 3760, 4888, 5080, 5969, 6110, 6604, 6760, 7943, 8255, 9776, 10160, 11938, 12220, 13208, 13520, 15886, 16510, 21463, 23876, 24440, 26416, 29845, 31772, 33020, 39715, 42926, 47752, 48880, 59690, 63544, 66040, 77597, 79430, 85852, 95504, 107315, 119380, 127088, 132080, 155194, 158860, 171704, 214630, 238760, 310388, 317720, 343408, 387985, 429260, 477520, 620776, 635440, 775970, 858520, 1008761, 1241552, 1551940, 1717040, 2017522, 3103880, 4035044, 5043805, 6207760, 8070088, 10087610, 16140176, 20175220, 40350440, 80700880]

約数ペア:

[(1, 80700880), (2, 40350440), (4, 20175220), (5, 16140176), (8, 10087610), (10, 8070088), (13, 6207760), (16, 5043805), (20, 4035044), (26, 3103880), (40, 2017522), (47, 1717040), (52, 1551940), (65, 1241552), (80, 1008761), (94, 858520), (104, 775970), (127, 635440), (130, 620776), (169, 477520), (188, 429260), (208, 387985), (235, 343408), (254, 317720), (260, 310388), (338, 238760), (376, 214630), (470, 171704), (508, 158860), (520, 155194), (611, 132080), (635, 127088), (676, 119380), (752, 107315), (845, 95504), (940, 85852), (1016, 79430), (1040, 77597), (1222, 66040), (1270, 63544), (1352, 59690), (1651, 48880), (1690, 47752), (1880, 42926), (2032, 39715), (2444, 33020), (2540, 31772), (2704, 29845), (3055, 26416), (3302, 24440), (3380, 23876), (3760, 21463), (4888, 16510), (5080, 15886), (5969, 13520), (6110, 13208), (6604, 12220), (6760, 11938), (7943, 10160), (8255, 9776)]