66884792

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{811}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 138194280

約数和(自身を除く): 71309488

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 169, 244, 338, 488, 676, 793, 811, 1352, 1586, 1622, 3172, 3244, 6344, 6488, 10309, 10543, 20618, 21086, 41236, 42172, 49471, 82472, 84344, 98942, 137059, 197884, 274118, 395768, 548236, 643123, 1096472, 1286246, 2572492, 5144984, 8360599, 16721198, 33442396, 66884792]

約数ペア:

[(1, 66884792), (2, 33442396), (4, 16721198), (8, 8360599), (13, 5144984), (26, 2572492), (52, 1286246), (61, 1096472), (104, 643123), (122, 548236), (169, 395768), (244, 274118), (338, 197884), (488, 137059), (676, 98942), (793, 84344), (811, 82472), (1352, 49471), (1586, 42172), (1622, 41236), (3172, 21086), (3244, 20618), (6344, 10543), (6488, 10309)]