78807780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{11833}}^1$

素因数の和:11885

約数の個数: 72

約数和(自身を含む): 245531832

約数和(自身を除く): 166724052

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3330, 6660, 11833, 23666, 35499, 47332, 59165, 70998, 106497, 118330, 141996, 177495, 212994, 236660, 354990, 425988, 437821, 532485, 709980, 875642, 1064970, 1313463, 1751284, 2129940, 2189105, 2626926, 3940389, 4378210, 5253852, 6567315, 7880778, 8756420, 13134630, 15761556, 19701945, 26269260, 39403890, 78807780]

約数ペア:

[(1, 78807780), (2, 39403890), (3, 26269260), (4, 19701945), (5, 15761556), (6, 13134630), (9, 8756420), (10, 7880778), (12, 6567315), (15, 5253852), (18, 4378210), (20, 3940389), (30, 2626926), (36, 2189105), (37, 2129940), (45, 1751284), (60, 1313463), (74, 1064970), (90, 875642), (111, 709980), (148, 532485), (180, 437821), (185, 425988), (222, 354990), (333, 236660), (370, 212994), (444, 177495), (555, 141996), (666, 118330), (740, 106497), (1110, 70998), (1332, 59165), (1665, 47332), (2220, 35499), (3330, 23666), (6660, 11833)]