78825880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6547}}^1$

素因数の和:6608

約数の個数: 64

約数和(自身を含む): 207440640

約数和(自身を除く): 128614760

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, 860, 1204, 1505, 1720, 2408, 3010, 6020, 6547, 12040, 13094, 26188, 32735, 45829, 52376, 65470, 91658, 130940, 183316, 229145, 261880, 281521, 366632, 458290, 563042, 916580, 1126084, 1407605, 1833160, 1970647, 2252168, 2815210, 3941294, 5630420, 7882588, 9853235, 11260840, 15765176, 19706470, 39412940, 78825880]

約数ペア:

[(1, 78825880), (2, 39412940), (4, 19706470), (5, 15765176), (7, 11260840), (8, 9853235), (10, 7882588), (14, 5630420), (20, 3941294), (28, 2815210), (35, 2252168), (40, 1970647), (43, 1833160), (56, 1407605), (70, 1126084), (86, 916580), (140, 563042), (172, 458290), (215, 366632), (280, 281521), (301, 261880), (344, 229145), (430, 183316), (602, 130940), (860, 91658), (1204, 65470), (1505, 52376), (1720, 45829), (2408, 32735), (3010, 26188), (6020, 13094), (6547, 12040)]