31884880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9721}}^1$

素因数の和:9775

約数の個数: 40

約数和(自身を含む): 75948264

約数和(自身を除く): 44063384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 9721, 19442, 38884, 48605, 77768, 97210, 155536, 194420, 388840, 398561, 777680, 797122, 1594244, 1992805, 3188488, 3985610, 6376976, 7971220, 15942440, 31884880]

約数ペア:

[(1, 31884880), (2, 15942440), (4, 7971220), (5, 6376976), (8, 3985610), (10, 3188488), (16, 1992805), (20, 1594244), (40, 797122), (41, 777680), (80, 398561), (82, 388840), (164, 194420), (205, 155536), (328, 97210), (410, 77768), (656, 48605), (820, 38884), (1640, 19442), (3280, 9721)]