15242920

素因数分解:

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

素因数の和:144

約数の個数: 128

約数和(自身を含む): 44064000

約数和(自身を除く): 28821080

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, 343, 385, 392, 404, 440, 490, 505, 539, 616, 686, 707, 770, 808, 980, 1010, 1078, 1111, 1372, 1414, 1540, 1715, 1960, 2020, 2156, 2222, 2695, 2744, 2828, 3080, 3430, 3535, 3773, 4040, 4312, 4444, 4949, 5390, 5555, 5656, 6860, 7070, 7546, 7777, 8888, 9898, 10780, 11110, 13720, 14140, 15092, 15554, 18865, 19796, 21560, 22220, 24745, 28280, 30184, 31108, 34643, 37730, 38885, 39592, 44440, 49490, 54439, 62216, 69286, 75460, 77770, 98980, 108878, 138572, 150920, 155540, 173215, 197960, 217756, 272195, 277144, 311080, 346430, 381073, 435512, 544390, 692860, 762146, 1088780, 1385720, 1524292, 1905365, 2177560, 3048584, 3810730, 7621460, 15242920]

約数ペア:

[(1, 15242920), (2, 7621460), (4, 3810730), (5, 3048584), (7, 2177560), (8, 1905365), (10, 1524292), (11, 1385720), (14, 1088780), (20, 762146), (22, 692860), (28, 544390), (35, 435512), (40, 381073), (44, 346430), (49, 311080), (55, 277144), (56, 272195), (70, 217756), (77, 197960), (88, 173215), (98, 155540), (101, 150920), (110, 138572), (140, 108878), (154, 98980), (196, 77770), (202, 75460), (220, 69286), (245, 62216), (280, 54439), (308, 49490), (343, 44440), (385, 39592), (392, 38885), (404, 37730), (440, 34643), (490, 31108), (505, 30184), (539, 28280), (616, 24745), (686, 22220), (707, 21560), (770, 19796), (808, 18865), (980, 15554), (1010, 15092), (1078, 14140), (1111, 13720), (1372, 11110), (1414, 10780), (1540, 9898), (1715, 8888), (1960, 7777), (2020, 7546), (2156, 7070), (2222, 6860), (2695, 5656), (2744, 5555), (2828, 5390), (3080, 4949), (3430, 4444), (3535, 4312), (3773, 4040)]