256577440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2141}}^1$

素因数の和:2270

約数の個数: 96

約数和(自身を含む): 699560064

約数和(自身を除く): 442982624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 107, 112, 140, 160, 214, 224, 280, 428, 535, 560, 749, 856, 1070, 1120, 1498, 1712, 2140, 2141, 2996, 3424, 3745, 4280, 4282, 5992, 7490, 8560, 8564, 10705, 11984, 14980, 14987, 17120, 17128, 21410, 23968, 29960, 29974, 34256, 42820, 59920, 59948, 68512, 74935, 85640, 119840, 119896, 149870, 171280, 229087, 239792, 299740, 342560, 458174, 479584, 599480, 916348, 1145435, 1198960, 1603609, 1832696, 2290870, 2397920, 3207218, 3665392, 4581740, 6414436, 7330784, 8018045, 9163480, 12828872, 16036090, 18326960, 25657744, 32072180, 36653920, 51315488, 64144360, 128288720, 256577440]

約数ペア:

[(1, 256577440), (2, 128288720), (4, 64144360), (5, 51315488), (7, 36653920), (8, 32072180), (10, 25657744), (14, 18326960), (16, 16036090), (20, 12828872), (28, 9163480), (32, 8018045), (35, 7330784), (40, 6414436), (56, 4581740), (70, 3665392), (80, 3207218), (107, 2397920), (112, 2290870), (140, 1832696), (160, 1603609), (214, 1198960), (224, 1145435), (280, 916348), (428, 599480), (535, 479584), (560, 458174), (749, 342560), (856, 299740), (1070, 239792), (1120, 229087), (1498, 171280), (1712, 149870), (2140, 119896), (2141, 119840), (2996, 85640), (3424, 74935), (3745, 68512), (4280, 59948), (4282, 59920), (5992, 42820), (7490, 34256), (8560, 29974), (8564, 29960), (10705, 23968), (11984, 21410), (14980, 17128), (14987, 17120)]