81581368

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2371}}^1$

素因数の和:2428

約数の個数: 64

約数和(自身を含む): 184446720

約数和(自身を除く): 102865352

約数列:

[1, 2, 4, 8, 11, 17, 22, 23, 34, 44, 46, 68, 88, 92, 136, 184, 187, 253, 374, 391, 506, 748, 782, 1012, 1496, 1564, 2024, 2371, 3128, 4301, 4742, 8602, 9484, 17204, 18968, 26081, 34408, 40307, 52162, 54533, 80614, 104324, 109066, 161228, 208648, 218132, 322456, 436264, 443377, 599863, 886754, 927061, 1199726, 1773508, 1854122, 2399452, 3547016, 3708244, 4798904, 7416488, 10197671, 20395342, 40790684, 81581368]

約数ペア:

[(1, 81581368), (2, 40790684), (4, 20395342), (8, 10197671), (11, 7416488), (17, 4798904), (22, 3708244), (23, 3547016), (34, 2399452), (44, 1854122), (46, 1773508), (68, 1199726), (88, 927061), (92, 886754), (136, 599863), (184, 443377), (187, 436264), (253, 322456), (374, 218132), (391, 208648), (506, 161228), (748, 109066), (782, 104324), (1012, 80614), (1496, 54533), (1564, 52162), (2024, 40307), (2371, 34408), (3128, 26081), (4301, 18968), (4742, 17204), (8602, 9484)]