2638790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 6220800

約数和(自身を除く): 3582010

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 35, 46, 55, 70, 77, 110, 115, 149, 154, 161, 230, 253, 298, 322, 385, 506, 745, 770, 805, 1043, 1265, 1490, 1610, 1639, 1771, 2086, 2530, 3278, 3427, 3542, 5215, 6854, 8195, 8855, 10430, 11473, 16390, 17135, 17710, 22946, 23989, 34270, 37697, 47978, 57365, 75394, 114730, 119945, 188485, 239890, 263879, 376970, 527758, 1319395, 2638790]

約数ペア:

[(1, 2638790), (2, 1319395), (5, 527758), (7, 376970), (10, 263879), (11, 239890), (14, 188485), (22, 119945), (23, 114730), (35, 75394), (46, 57365), (55, 47978), (70, 37697), (77, 34270), (110, 23989), (115, 22946), (149, 17710), (154, 17135), (161, 16390), (230, 11473), (253, 10430), (298, 8855), (322, 8195), (385, 6854), (506, 5215), (745, 3542), (770, 3427), (805, 3278), (1043, 2530), (1265, 2086), (1490, 1771), (1610, 1639)]