78409380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{186689}}^1$

素因数の和:186708

約数の個数: 48

約数和(自身を含む): 250911360

約数和(自身を除く): 172501980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 186689, 373378, 560067, 746756, 933445, 1120134, 1306823, 1866890, 2240268, 2613646, 2800335, 3733780, 3920469, 5227292, 5600670, 6534115, 7840938, 11201340, 13068230, 15681876, 19602345, 26136460, 39204690, 78409380]

約数ペア:

[(1, 78409380), (2, 39204690), (3, 26136460), (4, 19602345), (5, 15681876), (6, 13068230), (7, 11201340), (10, 7840938), (12, 6534115), (14, 5600670), (15, 5227292), (20, 3920469), (21, 3733780), (28, 2800335), (30, 2613646), (35, 2240268), (42, 1866890), (60, 1306823), (70, 1120134), (84, 933445), (105, 746756), (140, 560067), (210, 373378), (420, 186689)]