198621780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{472909}}^1$

素因数の和:472928

約数の個数: 48

約数和(自身を含む): 635591040

約数和(自身を除く): 436969260

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, 472909, 945818, 1418727, 1891636, 2364545, 2837454, 3310363, 4729090, 5674908, 6620726, 7093635, 9458180, 9931089, 13241452, 14187270, 16551815, 19862178, 28374540, 33103630, 39724356, 49655445, 66207260, 99310890, 198621780]

約数ペア:

[(1, 198621780), (2, 99310890), (3, 66207260), (4, 49655445), (5, 39724356), (6, 33103630), (7, 28374540), (10, 19862178), (12, 16551815), (14, 14187270), (15, 13241452), (20, 9931089), (21, 9458180), (28, 7093635), (30, 6620726), (35, 5674908), (42, 4729090), (60, 3310363), (70, 2837454), (84, 2364545), (105, 1891636), (140, 1418727), (210, 945818), (420, 472909)]