28157584

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{233}}^1$

素因数の和:344

約数の個数: 80

約数和(自身を含む): 68245632

約数和(自身を除く): 40088048

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 83, 91, 104, 112, 166, 182, 208, 233, 332, 364, 466, 581, 664, 728, 932, 1079, 1162, 1328, 1456, 1631, 1864, 2158, 2324, 3029, 3262, 3728, 4316, 4648, 6058, 6524, 7553, 8632, 9296, 12116, 13048, 15106, 17264, 19339, 21203, 24232, 26096, 30212, 38678, 42406, 48464, 60424, 77356, 84812, 120848, 135373, 154712, 169624, 251407, 270746, 309424, 339248, 502814, 541492, 1005628, 1082984, 1759849, 2011256, 2165968, 3519698, 4022512, 7039396, 14078792, 28157584]

約数ペア:

[(1, 28157584), (2, 14078792), (4, 7039396), (7, 4022512), (8, 3519698), (13, 2165968), (14, 2011256), (16, 1759849), (26, 1082984), (28, 1005628), (52, 541492), (56, 502814), (83, 339248), (91, 309424), (104, 270746), (112, 251407), (166, 169624), (182, 154712), (208, 135373), (233, 120848), (332, 84812), (364, 77356), (466, 60424), (581, 48464), (664, 42406), (728, 38678), (932, 30212), (1079, 26096), (1162, 24232), (1328, 21203), (1456, 19339), (1631, 17264), (1864, 15106), (2158, 13048), (2324, 12116), (3029, 9296), (3262, 8632), (3728, 7553), (4316, 6524), (4648, 6058)]