19969936

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:192

約数の個数: 80

約数和(自身を含む): 46743040

約数和(自身を除く): 26773104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 61, 74, 79, 112, 122, 148, 158, 244, 259, 296, 316, 427, 488, 518, 553, 592, 632, 854, 976, 1036, 1106, 1264, 1708, 2072, 2212, 2257, 2923, 3416, 4144, 4424, 4514, 4819, 5846, 6832, 8848, 9028, 9638, 11692, 15799, 18056, 19276, 20461, 23384, 31598, 33733, 36112, 38552, 40922, 46768, 63196, 67466, 77104, 81844, 126392, 134932, 163688, 178303, 252784, 269864, 327376, 356606, 539728, 713212, 1248121, 1426424, 2496242, 2852848, 4992484, 9984968, 19969936]

約数ペア:

[(1, 19969936), (2, 9984968), (4, 4992484), (7, 2852848), (8, 2496242), (14, 1426424), (16, 1248121), (28, 713212), (37, 539728), (56, 356606), (61, 327376), (74, 269864), (79, 252784), (112, 178303), (122, 163688), (148, 134932), (158, 126392), (244, 81844), (259, 77104), (296, 67466), (316, 63196), (427, 46768), (488, 40922), (518, 38552), (553, 36112), (592, 33733), (632, 31598), (854, 23384), (976, 20461), (1036, 19276), (1106, 18056), (1264, 15799), (1708, 11692), (2072, 9638), (2212, 9028), (2257, 8848), (2923, 6832), (3416, 5846), (4144, 4819), (4424, 4514)]