19425780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9811}}^1$

素因数の和:9837

約数の個数: 72

約数和(自身を含む): 64288224

約数和(自身を除く): 44862444

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 9811, 19622, 29433, 39244, 49055, 58866, 88299, 98110, 107921, 117732, 147165, 176598, 196220, 215842, 294330, 323763, 353196, 431684, 441495, 539605, 588660, 647526, 882990, 971289, 1079210, 1295052, 1618815, 1765980, 1942578, 2158420, 3237630, 3885156, 4856445, 6475260, 9712890, 19425780]

約数ペア:

[(1, 19425780), (2, 9712890), (3, 6475260), (4, 4856445), (5, 3885156), (6, 3237630), (9, 2158420), (10, 1942578), (11, 1765980), (12, 1618815), (15, 1295052), (18, 1079210), (20, 971289), (22, 882990), (30, 647526), (33, 588660), (36, 539605), (44, 441495), (45, 431684), (55, 353196), (60, 323763), (66, 294330), (90, 215842), (99, 196220), (110, 176598), (132, 147165), (165, 117732), (180, 107921), (198, 98110), (220, 88299), (330, 58866), (396, 49055), (495, 39244), (660, 29433), (990, 19622), (1980, 9811)]