61665640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1979}}^1$

素因数の和:2050

約数の個数: 64

約数和(自身を含む): 149688000

約数和(自身を除く): 88022360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 760, 779, 820, 1558, 1640, 1979, 3116, 3895, 3958, 6232, 7790, 7916, 9895, 15580, 15832, 19790, 31160, 37601, 39580, 75202, 79160, 81139, 150404, 162278, 188005, 300808, 324556, 376010, 405695, 649112, 752020, 811390, 1504040, 1541641, 1622780, 3083282, 3245560, 6166564, 7708205, 12333128, 15416410, 30832820, 61665640]

約数ペア:

[(1, 61665640), (2, 30832820), (4, 15416410), (5, 12333128), (8, 7708205), (10, 6166564), (19, 3245560), (20, 3083282), (38, 1622780), (40, 1541641), (41, 1504040), (76, 811390), (82, 752020), (95, 649112), (152, 405695), (164, 376010), (190, 324556), (205, 300808), (328, 188005), (380, 162278), (410, 150404), (760, 81139), (779, 79160), (820, 75202), (1558, 39580), (1640, 37601), (1979, 31160), (3116, 19790), (3895, 15832), (3958, 15580), (6232, 9895), (7790, 7916)]