81604012

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1289}}^1$

素因数の和:1343

約数の個数: 72

約数和(自身を含む): 185295600

約数和(自身を除く): 103691588

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 49, 68, 76, 98, 119, 133, 196, 238, 266, 323, 476, 532, 646, 833, 931, 1289, 1292, 1666, 1862, 2261, 2578, 3332, 3724, 4522, 5156, 9023, 9044, 15827, 18046, 21913, 24491, 31654, 36092, 43826, 48982, 63161, 63308, 87652, 97964, 126322, 153391, 171437, 252644, 306782, 342874, 416347, 613564, 685748, 832694, 1073737, 1200059, 1665388, 2147474, 2400118, 2914429, 4294948, 4800236, 5828858, 11657716, 20401003, 40802006, 81604012]

約数ペア:

[(1, 81604012), (2, 40802006), (4, 20401003), (7, 11657716), (14, 5828858), (17, 4800236), (19, 4294948), (28, 2914429), (34, 2400118), (38, 2147474), (49, 1665388), (68, 1200059), (76, 1073737), (98, 832694), (119, 685748), (133, 613564), (196, 416347), (238, 342874), (266, 306782), (323, 252644), (476, 171437), (532, 153391), (646, 126322), (833, 97964), (931, 87652), (1289, 63308), (1292, 63161), (1666, 48982), (1862, 43826), (2261, 36092), (2578, 31654), (3332, 24491), (3724, 21913), (4522, 18046), (5156, 15827), (9023, 9044)]