15942440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9721}}^1$

素因数の和:9773

約数の個数: 32

約数和(自身を含む): 36749160

約数和(自身を除く): 20806720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 9721, 19442, 38884, 48605, 77768, 97210, 194420, 388840, 398561, 797122, 1594244, 1992805, 3188488, 3985610, 7971220, 15942440]

約数ペア:

[(1, 15942440), (2, 7971220), (4, 3985610), (5, 3188488), (8, 1992805), (10, 1594244), (20, 797122), (40, 398561), (41, 388840), (82, 194420), (164, 97210), (205, 77768), (328, 48605), (410, 38884), (820, 19442), (1640, 9721)]