20057087615

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:480

約数の個数: 64

約数和(自身を含む): 25712640000

約数和(自身を除く): 5655552385

約数列:

[1, 5, 47, 61, 79, 89, 199, 235, 305, 395, 445, 995, 2867, 3713, 4183, 4819, 5429, 7031, 9353, 12139, 14335, 15721, 17711, 18565, 20915, 24095, 27145, 35155, 46765, 60695, 78605, 88555, 226493, 255163, 330457, 428891, 570533, 738887, 832417, 958981, 1080371, 1132465, 1275815, 1399169, 1652285, 2144455, 2852665, 3694435, 4162085, 4794905, 5401855, 6995845, 20157877, 45072107, 50777437, 65760943, 85349309, 100789385, 225360535, 253887185, 328804715, 426746545, 4011417523, 20057087615]

約数ペア:

[(1, 20057087615), (5, 4011417523), (47, 426746545), (61, 328804715), (79, 253887185), (89, 225360535), (199, 100789385), (235, 85349309), (305, 65760943), (395, 50777437), (445, 45072107), (995, 20157877), (2867, 6995845), (3713, 5401855), (4183, 4794905), (4819, 4162085), (5429, 3694435), (7031, 2852665), (9353, 2144455), (12139, 1652285), (14335, 1399169), (15721, 1275815), (17711, 1132465), (18565, 1080371), (20915, 958981), (24095, 832417), (27145, 738887), (35155, 570533), (46765, 428891), (60695, 330457), (78605, 255163), (88555, 226493)]