400865192

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1$

素因数の和:515

約数の個数: 128

約数和(自身を含む): 989587200

約数和(自身を除く): 588722008

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 73, 76, 91, 104, 133, 146, 152, 182, 247, 266, 292, 364, 397, 494, 511, 532, 584, 728, 794, 949, 988, 1022, 1064, 1387, 1588, 1729, 1898, 1976, 2044, 2774, 2779, 3176, 3458, 3796, 4088, 5161, 5548, 5558, 6643, 6916, 7543, 7592, 9709, 10322, 11096, 11116, 13286, 13832, 15086, 18031, 19418, 20644, 22232, 26572, 28981, 30172, 36062, 36127, 38836, 41288, 52801, 53144, 57962, 60344, 72124, 72254, 77672, 98059, 105602, 115924, 126217, 144248, 144508, 196118, 202867, 211204, 231848, 252434, 289016, 376753, 392236, 405734, 422408, 504868, 550639, 686413, 753506, 784472, 811468, 1009736, 1101278, 1372826, 1507012, 1622936, 2202556, 2637271, 2745652, 3014024, 3854473, 4405112, 5274542, 5491304, 7158307, 7708946, 10549084, 14316614, 15417892, 21098168, 28633228, 30835784, 50108149, 57266456, 100216298, 200432596, 400865192]

約数ペア:

[(1, 400865192), (2, 200432596), (4, 100216298), (7, 57266456), (8, 50108149), (13, 30835784), (14, 28633228), (19, 21098168), (26, 15417892), (28, 14316614), (38, 10549084), (52, 7708946), (56, 7158307), (73, 5491304), (76, 5274542), (91, 4405112), (104, 3854473), (133, 3014024), (146, 2745652), (152, 2637271), (182, 2202556), (247, 1622936), (266, 1507012), (292, 1372826), (364, 1101278), (397, 1009736), (494, 811468), (511, 784472), (532, 753506), (584, 686413), (728, 550639), (794, 504868), (949, 422408), (988, 405734), (1022, 392236), (1064, 376753), (1387, 289016), (1588, 252434), (1729, 231848), (1898, 211204), (1976, 202867), (2044, 196118), (2774, 144508), (2779, 144248), (3176, 126217), (3458, 115924), (3796, 105602), (4088, 98059), (5161, 77672), (5548, 72254), (5558, 72124), (6643, 60344), (6916, 57962), (7543, 53144), (7592, 52801), (9709, 41288), (10322, 38836), (11096, 36127), (11116, 36062), (13286, 30172), (13832, 28981), (15086, 26572), (18031, 22232), (19418, 20644)]