387996896

素因数分解:

$2^5\times 7^2\times {\mathrm{97}}^1\times {\mathrm{2551}}^1$

素因数の和:2672

約数の個数: 72

約数和(自身を含む): 898094736

約数和(自身を除く): 510097840

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 97, 98, 112, 194, 196, 224, 388, 392, 679, 776, 784, 1358, 1552, 1568, 2551, 2716, 3104, 4753, 5102, 5432, 9506, 10204, 10864, 17857, 19012, 20408, 21728, 35714, 38024, 40816, 71428, 76048, 81632, 124999, 142856, 152096, 247447, 249998, 285712, 494894, 499996, 571424, 989788, 999992, 1732129, 1979576, 1999984, 3464258, 3959152, 3999968, 6928516, 7918304, 12124903, 13857032, 24249806, 27714064, 48499612, 55428128, 96999224, 193998448, 387996896]

約数ペア:

[(1, 387996896), (2, 193998448), (4, 96999224), (7, 55428128), (8, 48499612), (14, 27714064), (16, 24249806), (28, 13857032), (32, 12124903), (49, 7918304), (56, 6928516), (97, 3999968), (98, 3959152), (112, 3464258), (194, 1999984), (196, 1979576), (224, 1732129), (388, 999992), (392, 989788), (679, 571424), (776, 499996), (784, 494894), (1358, 285712), (1552, 249998), (1568, 247447), (2551, 152096), (2716, 142856), (3104, 124999), (4753, 81632), (5102, 76048), (5432, 71428), (9506, 40816), (10204, 38024), (10864, 35714), (17857, 21728), (19012, 20408)]