66678920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21649}}^1$

素因数の和:21678

約数の個数: 64

約数和(自身を含む): 187056000

約数和(自身を除く): 120377080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 21649, 43298, 86596, 108245, 151543, 173192, 216490, 238139, 303086, 432980, 476278, 606172, 757715, 865960, 952556, 1190695, 1212344, 1515430, 1666973, 1905112, 2381390, 3030860, 3333946, 4762780, 6061720, 6667892, 8334865, 9525560, 13335784, 16669730, 33339460, 66678920]

約数ペア:

[(1, 66678920), (2, 33339460), (4, 16669730), (5, 13335784), (7, 9525560), (8, 8334865), (10, 6667892), (11, 6061720), (14, 4762780), (20, 3333946), (22, 3030860), (28, 2381390), (35, 1905112), (40, 1666973), (44, 1515430), (55, 1212344), (56, 1190695), (70, 952556), (77, 865960), (88, 757715), (110, 606172), (140, 476278), (154, 432980), (220, 303086), (280, 238139), (308, 216490), (385, 173192), (440, 151543), (616, 108245), (770, 86596), (1540, 43298), (3080, 21649)]