81967900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6163}}^1$

素因数の和:6203

約数の個数: 72

約数和(自身を含む): 214014080

約数和(自身を除く): 132046180

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 50, 70, 76, 95, 100, 133, 140, 175, 190, 266, 350, 380, 475, 532, 665, 700, 950, 1330, 1900, 2660, 3325, 6163, 6650, 12326, 13300, 24652, 30815, 43141, 61630, 86282, 117097, 123260, 154075, 172564, 215705, 234194, 308150, 431410, 468388, 585485, 616300, 819679, 862820, 1078525, 1170970, 1639358, 2157050, 2341940, 2927425, 3278716, 4098395, 4314100, 5854850, 8196790, 11709700, 16393580, 20491975, 40983950, 81967900]

約数ペア:

[(1, 81967900), (2, 40983950), (4, 20491975), (5, 16393580), (7, 11709700), (10, 8196790), (14, 5854850), (19, 4314100), (20, 4098395), (25, 3278716), (28, 2927425), (35, 2341940), (38, 2157050), (50, 1639358), (70, 1170970), (76, 1078525), (95, 862820), (100, 819679), (133, 616300), (140, 585485), (175, 468388), (190, 431410), (266, 308150), (350, 234194), (380, 215705), (475, 172564), (532, 154075), (665, 123260), (700, 117097), (950, 86282), (1330, 61630), (1900, 43141), (2660, 30815), (3325, 24652), (6163, 13300), (6650, 12326)]