399493780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{9739}}^1$

素因数の和:10048

約数の個数: 48

約数和(自身を含む): 962156160

約数和(自身を除く): 562662380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 293, 586, 1172, 1465, 2051, 2930, 4102, 5860, 8204, 9739, 10255, 19478, 20510, 38956, 41020, 48695, 68173, 97390, 136346, 194780, 272692, 340865, 681730, 1363460, 2853527, 5707054, 11414108, 14267635, 19974689, 28535270, 39949378, 57070540, 79898756, 99873445, 199746890, 399493780]

約数ペア:

[(1, 399493780), (2, 199746890), (4, 99873445), (5, 79898756), (7, 57070540), (10, 39949378), (14, 28535270), (20, 19974689), (28, 14267635), (35, 11414108), (70, 5707054), (140, 2853527), (293, 1363460), (586, 681730), (1172, 340865), (1465, 272692), (2051, 194780), (2930, 136346), (4102, 97390), (5860, 68173), (8204, 48695), (9739, 41020), (10255, 38956), (19478, 20510)]