20665336

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 43390080

約数和(自身を除く): 22724744

約数列:

[1, 2, 4, 8, 17, 34, 47, 53, 61, 68, 94, 106, 122, 136, 188, 212, 244, 376, 424, 488, 799, 901, 1037, 1598, 1802, 2074, 2491, 2867, 3196, 3233, 3604, 4148, 4982, 5734, 6392, 6466, 7208, 8296, 9964, 11468, 12932, 19928, 22936, 25864, 42347, 48739, 54961, 84694, 97478, 109922, 151951, 169388, 194956, 219844, 303902, 338776, 389912, 439688, 607804, 1215608, 2583167, 5166334, 10332668, 20665336]

約数ペア:

[(1, 20665336), (2, 10332668), (4, 5166334), (8, 2583167), (17, 1215608), (34, 607804), (47, 439688), (53, 389912), (61, 338776), (68, 303902), (94, 219844), (106, 194956), (122, 169388), (136, 151951), (188, 109922), (212, 97478), (244, 84694), (376, 54961), (424, 48739), (488, 42347), (799, 25864), (901, 22936), (1037, 19928), (1598, 12932), (1802, 11468), (2074, 9964), (2491, 8296), (2867, 7208), (3196, 6466), (3233, 6392), (3604, 5734), (4148, 4982)]