20890144

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3491}}^1$

素因数の和:3529

約数の個数: 48

約数和(自身を含む): 47519136

約数和(自身を除く): 26628992

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 68, 88, 136, 176, 187, 272, 352, 374, 544, 748, 1496, 2992, 3491, 5984, 6982, 13964, 27928, 38401, 55856, 59347, 76802, 111712, 118694, 153604, 237388, 307208, 474776, 614416, 652817, 949552, 1228832, 1305634, 1899104, 2611268, 5222536, 10445072, 20890144]

約数ペア:

[(1, 20890144), (2, 10445072), (4, 5222536), (8, 2611268), (11, 1899104), (16, 1305634), (17, 1228832), (22, 949552), (32, 652817), (34, 614416), (44, 474776), (68, 307208), (88, 237388), (136, 153604), (176, 118694), (187, 111712), (272, 76802), (352, 59347), (374, 55856), (544, 38401), (748, 27928), (1496, 13964), (2992, 6982), (3491, 5984)]