2177560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1$

素因数の和:137

約数の個数: 96

約数和(自身を含む): 6279120

約数和(自身を除く): 4101560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 98, 101, 110, 140, 154, 196, 202, 220, 245, 280, 308, 385, 392, 404, 440, 490, 505, 539, 616, 707, 770, 808, 980, 1010, 1078, 1111, 1414, 1540, 1960, 2020, 2156, 2222, 2695, 2828, 3080, 3535, 4040, 4312, 4444, 4949, 5390, 5555, 5656, 7070, 7777, 8888, 9898, 10780, 11110, 14140, 15554, 19796, 21560, 22220, 24745, 28280, 31108, 38885, 39592, 44440, 49490, 54439, 62216, 77770, 98980, 108878, 155540, 197960, 217756, 272195, 311080, 435512, 544390, 1088780, 2177560]

約数ペア:

[(1, 2177560), (2, 1088780), (4, 544390), (5, 435512), (7, 311080), (8, 272195), (10, 217756), (11, 197960), (14, 155540), (20, 108878), (22, 98980), (28, 77770), (35, 62216), (40, 54439), (44, 49490), (49, 44440), (55, 39592), (56, 38885), (70, 31108), (77, 28280), (88, 24745), (98, 22220), (101, 21560), (110, 19796), (140, 15554), (154, 14140), (196, 11110), (202, 10780), (220, 9898), (245, 8888), (280, 7777), (308, 7070), (385, 5656), (392, 5555), (404, 5390), (440, 4949), (490, 4444), (505, 4312), (539, 4040), (616, 3535), (707, 3080), (770, 2828), (808, 2695), (980, 2222), (1010, 2156), (1078, 2020), (1111, 1960), (1414, 1540)]