209916784

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{241}}^1$

素因数の和:375

約数の個数: 120

約数和(自身を含む): 523399536

約数和(自身を除く): 313482752

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 49, 56, 77, 88, 98, 101, 112, 154, 176, 196, 202, 241, 308, 392, 404, 482, 539, 616, 707, 784, 808, 964, 1078, 1111, 1232, 1414, 1616, 1687, 1928, 2156, 2222, 2651, 2828, 3374, 3856, 4312, 4444, 4949, 5302, 5656, 6748, 7777, 8624, 8888, 9898, 10604, 11312, 11809, 13496, 15554, 17776, 18557, 19796, 21208, 23618, 24341, 26992, 31108, 37114, 39592, 42416, 47236, 48682, 54439, 62216, 74228, 79184, 94472, 97364, 108878, 124432, 129899, 148456, 170387, 188944, 194728, 217756, 259798, 267751, 296912, 340774, 389456, 435512, 519596, 535502, 681548, 871024, 1039192, 1071004, 1192709, 1363096, 1874257, 2078384, 2142008, 2385418, 2726192, 3748514, 4284016, 4770836, 7497028, 9541672, 13119799, 14994056, 19083344, 26239598, 29988112, 52479196, 104958392, 209916784]

約数ペア:

[(1, 209916784), (2, 104958392), (4, 52479196), (7, 29988112), (8, 26239598), (11, 19083344), (14, 14994056), (16, 13119799), (22, 9541672), (28, 7497028), (44, 4770836), (49, 4284016), (56, 3748514), (77, 2726192), (88, 2385418), (98, 2142008), (101, 2078384), (112, 1874257), (154, 1363096), (176, 1192709), (196, 1071004), (202, 1039192), (241, 871024), (308, 681548), (392, 535502), (404, 519596), (482, 435512), (539, 389456), (616, 340774), (707, 296912), (784, 267751), (808, 259798), (964, 217756), (1078, 194728), (1111, 188944), (1232, 170387), (1414, 148456), (1616, 129899), (1687, 124432), (1928, 108878), (2156, 97364), (2222, 94472), (2651, 79184), (2828, 74228), (3374, 62216), (3856, 54439), (4312, 48682), (4444, 47236), (4949, 42416), (5302, 39592), (5656, 37114), (6748, 31108), (7777, 26992), (8624, 24341), (8888, 23618), (9898, 21208), (10604, 19796), (11312, 18557), (11809, 17776), (13496, 15554)]