20091968

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:116

約数の個数: 112

約数和(自身を含む): 47792640

約数和(自身を除く): 27700672

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 31, 32, 38, 41, 52, 62, 64, 76, 82, 104, 124, 152, 164, 208, 247, 248, 304, 328, 403, 416, 494, 496, 533, 589, 608, 656, 779, 806, 832, 988, 992, 1066, 1178, 1216, 1271, 1312, 1558, 1612, 1976, 1984, 2132, 2356, 2542, 2624, 3116, 3224, 3952, 4264, 4712, 5084, 6232, 6448, 7657, 7904, 8528, 9424, 10127, 10168, 12464, 12896, 15314, 15808, 16523, 17056, 18848, 20254, 20336, 24149, 24928, 25792, 30628, 33046, 34112, 37696, 40508, 40672, 48298, 49856, 61256, 66092, 81016, 81344, 96596, 122512, 132184, 162032, 193192, 245024, 264368, 313937, 324064, 386384, 490048, 528736, 627874, 648128, 772768, 1057472, 1255748, 1545536, 2511496, 5022992, 10045984, 20091968]

約数ペア:

[(1, 20091968), (2, 10045984), (4, 5022992), (8, 2511496), (13, 1545536), (16, 1255748), (19, 1057472), (26, 772768), (31, 648128), (32, 627874), (38, 528736), (41, 490048), (52, 386384), (62, 324064), (64, 313937), (76, 264368), (82, 245024), (104, 193192), (124, 162032), (152, 132184), (164, 122512), (208, 96596), (247, 81344), (248, 81016), (304, 66092), (328, 61256), (403, 49856), (416, 48298), (494, 40672), (496, 40508), (533, 37696), (589, 34112), (608, 33046), (656, 30628), (779, 25792), (806, 24928), (832, 24149), (988, 20336), (992, 20254), (1066, 18848), (1178, 17056), (1216, 16523), (1271, 15808), (1312, 15314), (1558, 12896), (1612, 12464), (1976, 10168), (1984, 10127), (2132, 9424), (2356, 8528), (2542, 7904), (2624, 7657), (3116, 6448), (3224, 6232), (3952, 5084), (4264, 4712)]