81671600

素因数分解:

$2^4\times 5^2\times {\mathrm{191}}^1\times {\mathrm{1069}}^1$

素因数の和:1278

約数の個数: 60

約数和(自身を含む): 197427840

約数和(自身を除く): 115756240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 191, 200, 382, 400, 764, 955, 1069, 1528, 1910, 2138, 3056, 3820, 4276, 4775, 5345, 7640, 8552, 9550, 10690, 15280, 17104, 19100, 21380, 26725, 38200, 42760, 53450, 76400, 85520, 106900, 204179, 213800, 408358, 427600, 816716, 1020895, 1633432, 2041790, 3266864, 4083580, 5104475, 8167160, 10208950, 16334320, 20417900, 40835800, 81671600]

約数ペア:

[(1, 81671600), (2, 40835800), (4, 20417900), (5, 16334320), (8, 10208950), (10, 8167160), (16, 5104475), (20, 4083580), (25, 3266864), (40, 2041790), (50, 1633432), (80, 1020895), (100, 816716), (191, 427600), (200, 408358), (382, 213800), (400, 204179), (764, 106900), (955, 85520), (1069, 76400), (1528, 53450), (1910, 42760), (2138, 38200), (3056, 26725), (3820, 21380), (4276, 19100), (4775, 17104), (5345, 15280), (7640, 10690), (8552, 9550)]