20123687984

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1104241}}^1$

素因数の和:1104333

約数の個数: 40

約数和(自身を含む): 41899358448

約数和(自身を除く): 21775670464

約数列:

[1, 2, 4, 8, 16, 17, 34, 67, 68, 134, 136, 268, 272, 536, 1072, 1139, 2278, 4556, 9112, 18224, 1104241, 2208482, 4416964, 8833928, 17667856, 18772097, 37544194, 73984147, 75088388, 147968294, 150176776, 295936588, 300353552, 591873176, 1183746352, 1257730499, 2515460998, 5030921996, 10061843992, 20123687984]

約数ペア:

[(1, 20123687984), (2, 10061843992), (4, 5030921996), (8, 2515460998), (16, 1257730499), (17, 1183746352), (34, 591873176), (67, 300353552), (68, 295936588), (134, 150176776), (136, 147968294), (268, 75088388), (272, 73984147), (536, 37544194), (1072, 18772097), (1139, 17667856), (2278, 8833928), (4556, 4416964), (9112, 2208482), (18224, 1104241)]