248755960

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1\times {\mathrm{431}}^1$

素因数の和:796

約数の個数: 64

約数和(自身を含む): 574801920

約数和(自身を除く): 326045960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 307, 376, 431, 470, 614, 862, 940, 1228, 1535, 1724, 1880, 2155, 2456, 3070, 3448, 4310, 6140, 8620, 12280, 14429, 17240, 20257, 28858, 40514, 57716, 72145, 81028, 101285, 115432, 132317, 144290, 162056, 202570, 264634, 288580, 405140, 529268, 577160, 661585, 810280, 1058536, 1323170, 2646340, 5292680, 6218899, 12437798, 24875596, 31094495, 49751192, 62188990, 124377980, 248755960]

約数ペア:

[(1, 248755960), (2, 124377980), (4, 62188990), (5, 49751192), (8, 31094495), (10, 24875596), (20, 12437798), (40, 6218899), (47, 5292680), (94, 2646340), (188, 1323170), (235, 1058536), (307, 810280), (376, 661585), (431, 577160), (470, 529268), (614, 405140), (862, 288580), (940, 264634), (1228, 202570), (1535, 162056), (1724, 144290), (1880, 132317), (2155, 115432), (2456, 101285), (3070, 81028), (3448, 72145), (4310, 57716), (6140, 40514), (8620, 28858), (12280, 20257), (14429, 17240)]