7789880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 20528640

約数和(自身を除く): 12738760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 647, 860, 1204, 1294, 1505, 1720, 2408, 2588, 3010, 3235, 4529, 5176, 6020, 6470, 9058, 12040, 12940, 18116, 22645, 25880, 27821, 36232, 45290, 55642, 90580, 111284, 139105, 181160, 194747, 222568, 278210, 389494, 556420, 778988, 973735, 1112840, 1557976, 1947470, 3894940, 7789880]

約数ペア:

[(1, 7789880), (2, 3894940), (4, 1947470), (5, 1557976), (7, 1112840), (8, 973735), (10, 778988), (14, 556420), (20, 389494), (28, 278210), (35, 222568), (40, 194747), (43, 181160), (56, 139105), (70, 111284), (86, 90580), (140, 55642), (172, 45290), (215, 36232), (280, 27821), (301, 25880), (344, 22645), (430, 18116), (602, 12940), (647, 12040), (860, 9058), (1204, 6470), (1294, 6020), (1505, 5176), (1720, 4529), (2408, 3235), (2588, 3010)]