678403040

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{86531}}^1$

素因数の和:86560

約数の個数: 72

約数和(自身を含む): 1864418472

約数和(自身を除く): 1186015432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 86531, 173062, 346124, 432655, 605717, 692248, 865310, 1211434, 1384496, 1730620, 2422868, 2768992, 3028585, 3461240, 4240019, 4845736, 6057170, 6922480, 8480038, 9691472, 12114340, 13844960, 16960076, 19382944, 21200095, 24228680, 33920152, 42400190, 48457360, 67840304, 84800380, 96914720, 135680608, 169600760, 339201520, 678403040]

約数ペア:

[(1, 678403040), (2, 339201520), (4, 169600760), (5, 135680608), (7, 96914720), (8, 84800380), (10, 67840304), (14, 48457360), (16, 42400190), (20, 33920152), (28, 24228680), (32, 21200095), (35, 19382944), (40, 16960076), (49, 13844960), (56, 12114340), (70, 9691472), (80, 8480038), (98, 6922480), (112, 6057170), (140, 4845736), (160, 4240019), (196, 3461240), (224, 3028585), (245, 2768992), (280, 2422868), (392, 1730620), (490, 1384496), (560, 1211434), (784, 865310), (980, 692248), (1120, 605717), (1568, 432655), (1960, 346124), (3920, 173062), (7840, 86531)]