19846736

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:388

約数の個数: 80

約数和(自身を含む): 48580224

約数和(自身を除く): 28733488

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 43, 52, 56, 86, 91, 104, 112, 172, 182, 208, 301, 317, 344, 364, 559, 602, 634, 688, 728, 1118, 1204, 1268, 1456, 2219, 2236, 2408, 2536, 3913, 4121, 4438, 4472, 4816, 5072, 7826, 8242, 8876, 8944, 13631, 15652, 16484, 17752, 27262, 28847, 31304, 32968, 35504, 54524, 57694, 62608, 65936, 95417, 109048, 115388, 177203, 190834, 218096, 230776, 354406, 381668, 461552, 708812, 763336, 1240421, 1417624, 1526672, 2480842, 2835248, 4961684, 9923368, 19846736]

約数ペア:

[(1, 19846736), (2, 9923368), (4, 4961684), (7, 2835248), (8, 2480842), (13, 1526672), (14, 1417624), (16, 1240421), (26, 763336), (28, 708812), (43, 461552), (52, 381668), (56, 354406), (86, 230776), (91, 218096), (104, 190834), (112, 177203), (172, 115388), (182, 109048), (208, 95417), (301, 65936), (317, 62608), (344, 57694), (364, 54524), (559, 35504), (602, 32968), (634, 31304), (688, 28847), (728, 27262), (1118, 17752), (1204, 16484), (1268, 15652), (1456, 13631), (2219, 8944), (2236, 8876), (2408, 8242), (2536, 7826), (3913, 5072), (4121, 4816), (4438, 4472)]