20689859970

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1964849}}^1$

素因数の和:1964881

約数の個数: 80

約数和(自身を含む): 59912206200

約数和(自身を除く): 39222346230

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 270, 351, 390, 405, 585, 702, 810, 1053, 1170, 1755, 2106, 3510, 5265, 10530, 1964849, 3929698, 5894547, 9824245, 11789094, 17683641, 19648490, 25543037, 29472735, 35367282, 51086074, 53050923, 58945470, 76629111, 88418205, 106101846, 127715185, 153258222, 159152769, 176836410, 229887333, 255430370, 265254615, 318305538, 383145555, 459774666, 530509230, 689661999, 766291110, 795763845, 1149436665, 1379323998, 1591527690, 2068985997, 2298873330, 3448309995, 4137971994, 6896619990, 10344929985, 20689859970]

約数ペア:

[(1, 20689859970), (2, 10344929985), (3, 6896619990), (5, 4137971994), (6, 3448309995), (9, 2298873330), (10, 2068985997), (13, 1591527690), (15, 1379323998), (18, 1149436665), (26, 795763845), (27, 766291110), (30, 689661999), (39, 530509230), (45, 459774666), (54, 383145555), (65, 318305538), (78, 265254615), (81, 255430370), (90, 229887333), (117, 176836410), (130, 159152769), (135, 153258222), (162, 127715185), (195, 106101846), (234, 88418205), (270, 76629111), (351, 58945470), (390, 53050923), (405, 51086074), (585, 35367282), (702, 29472735), (810, 25543037), (1053, 19648490), (1170, 17683641), (1755, 11789094), (2106, 9824245), (3510, 5894547), (5265, 3929698), (10530, 1964849)]