198013360

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{9631}}^1$

素因数の和:9901

約数の個数: 40

約数和(自身を含む): 462220416

約数和(自身を除く): 264207056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 9631, 10280, 19262, 20560, 38524, 48155, 77048, 96310, 154096, 192620, 385240, 770480, 2475167, 4950334, 9900668, 12375835, 19801336, 24751670, 39602672, 49503340, 99006680, 198013360]

約数ペア:

[(1, 198013360), (2, 99006680), (4, 49503340), (5, 39602672), (8, 24751670), (10, 19801336), (16, 12375835), (20, 9900668), (40, 4950334), (80, 2475167), (257, 770480), (514, 385240), (1028, 192620), (1285, 154096), (2056, 96310), (2570, 77048), (4112, 48155), (5140, 38524), (9631, 20560), (10280, 19262)]