87840040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2819}}^1$

素因数の和:2890

約数の個数: 64

約数和(自身を含む): 213192000

約数和(自身を除く): 125351960

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, 2819, 3116, 3895, 5638, 6232, 7790, 11276, 14095, 15580, 22552, 28190, 31160, 53561, 56380, 107122, 112760, 115579, 214244, 231158, 267805, 428488, 462316, 535610, 577895, 924632, 1071220, 1155790, 2142440, 2196001, 2311580, 4392002, 4623160, 8784004, 10980005, 17568008, 21960010, 43920020, 87840040]

約数ペア:

[(1, 87840040), (2, 43920020), (4, 21960010), (5, 17568008), (8, 10980005), (10, 8784004), (19, 4623160), (20, 4392002), (38, 2311580), (40, 2196001), (41, 2142440), (76, 1155790), (82, 1071220), (95, 924632), (152, 577895), (164, 535610), (190, 462316), (205, 428488), (328, 267805), (380, 231158), (410, 214244), (760, 115579), (779, 112760), (820, 107122), (1558, 56380), (1640, 53561), (2819, 31160), (3116, 28190), (3895, 22552), (5638, 15580), (6232, 14095), (7790, 11276)]