1088780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 2930256

約数和(自身を除く): 1841476

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 101, 110, 140, 154, 196, 202, 220, 245, 308, 385, 404, 490, 505, 539, 707, 770, 980, 1010, 1078, 1111, 1414, 1540, 2020, 2156, 2222, 2695, 2828, 3535, 4444, 4949, 5390, 5555, 7070, 7777, 9898, 10780, 11110, 14140, 15554, 19796, 22220, 24745, 31108, 38885, 49490, 54439, 77770, 98980, 108878, 155540, 217756, 272195, 544390, 1088780]

約数ペア:

[(1, 1088780), (2, 544390), (4, 272195), (5, 217756), (7, 155540), (10, 108878), (11, 98980), (14, 77770), (20, 54439), (22, 49490), (28, 38885), (35, 31108), (44, 24745), (49, 22220), (55, 19796), (70, 15554), (77, 14140), (98, 11110), (101, 10780), (110, 9898), (140, 7777), (154, 7070), (196, 5555), (202, 5390), (220, 4949), (245, 4444), (308, 3535), (385, 2828), (404, 2695), (490, 2222), (505, 2156), (539, 2020), (707, 1540), (770, 1414), (980, 1111), (1010, 1078)]