20827840

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:186

約数の個数: 112

約数和(自身を含む): 55558944

約数和(自身を除く): 34731104

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 61, 64, 80, 88, 97, 110, 122, 160, 176, 194, 220, 244, 305, 320, 352, 388, 440, 485, 488, 610, 671, 704, 776, 880, 970, 976, 1067, 1220, 1342, 1552, 1760, 1940, 1952, 2134, 2440, 2684, 3104, 3355, 3520, 3880, 3904, 4268, 4880, 5335, 5368, 5917, 6208, 6710, 7760, 8536, 9760, 10670, 10736, 11834, 13420, 15520, 17072, 19520, 21340, 21472, 23668, 26840, 29585, 31040, 34144, 42680, 42944, 47336, 53680, 59170, 65087, 68288, 85360, 94672, 107360, 118340, 130174, 170720, 189344, 214720, 236680, 260348, 325435, 341440, 378688, 473360, 520696, 650870, 946720, 1041392, 1301740, 1893440, 2082784, 2603480, 4165568, 5206960, 10413920, 20827840]

約数ペア:

[(1, 20827840), (2, 10413920), (4, 5206960), (5, 4165568), (8, 2603480), (10, 2082784), (11, 1893440), (16, 1301740), (20, 1041392), (22, 946720), (32, 650870), (40, 520696), (44, 473360), (55, 378688), (61, 341440), (64, 325435), (80, 260348), (88, 236680), (97, 214720), (110, 189344), (122, 170720), (160, 130174), (176, 118340), (194, 107360), (220, 94672), (244, 85360), (305, 68288), (320, 65087), (352, 59170), (388, 53680), (440, 47336), (485, 42944), (488, 42680), (610, 34144), (671, 31040), (704, 29585), (776, 26840), (880, 23668), (970, 21472), (976, 21340), (1067, 19520), (1220, 17072), (1342, 15520), (1552, 13420), (1760, 11834), (1940, 10736), (1952, 10670), (2134, 9760), (2440, 8536), (2684, 7760), (3104, 6710), (3355, 6208), (3520, 5917), (3880, 5368), (3904, 5335), (4268, 4880)]