28438960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1901}}^1$

素因数の和:1942

約数の個数: 80

約数和(自身を含む): 76414752

約数和(自身を除く): 47975792

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 1901, 2992, 3740, 3802, 7480, 7604, 9505, 14960, 15208, 19010, 20911, 30416, 32317, 38020, 41822, 64634, 76040, 83644, 104555, 129268, 152080, 161585, 167288, 209110, 258536, 323170, 334576, 355487, 418220, 517072, 646340, 710974, 836440, 1292680, 1421948, 1672880, 1777435, 2585360, 2843896, 3554870, 5687792, 7109740, 14219480, 28438960]

約数ペア:

[(1, 28438960), (2, 14219480), (4, 7109740), (5, 5687792), (8, 3554870), (10, 2843896), (11, 2585360), (16, 1777435), (17, 1672880), (20, 1421948), (22, 1292680), (34, 836440), (40, 710974), (44, 646340), (55, 517072), (68, 418220), (80, 355487), (85, 334576), (88, 323170), (110, 258536), (136, 209110), (170, 167288), (176, 161585), (187, 152080), (220, 129268), (272, 104555), (340, 83644), (374, 76040), (440, 64634), (680, 41822), (748, 38020), (880, 32317), (935, 30416), (1360, 20911), (1496, 19010), (1870, 15208), (1901, 14960), (2992, 9505), (3740, 7604), (3802, 7480)]