20745522016

素因数分解:

$2^5\times {\mathrm{137}}^1\times {\mathrm{661}}^1\times {\mathrm{7159}}^1$

素因数の和:7967

約数の個数: 48

約数和(自身を含む): 41208864480

約数和(自身を除く): 20463342464

約数列:

[1, 2, 4, 8, 16, 32, 137, 274, 548, 661, 1096, 1322, 2192, 2644, 4384, 5288, 7159, 10576, 14318, 21152, 28636, 57272, 90557, 114544, 181114, 229088, 362228, 724456, 980783, 1448912, 1961566, 2897824, 3923132, 4732099, 7846264, 9464198, 15692528, 18928396, 31385056, 37856792, 75713584, 151427168, 648297563, 1296595126, 2593190252, 5186380504, 10372761008, 20745522016]

約数ペア:

[(1, 20745522016), (2, 10372761008), (4, 5186380504), (8, 2593190252), (16, 1296595126), (32, 648297563), (137, 151427168), (274, 75713584), (548, 37856792), (661, 31385056), (1096, 18928396), (1322, 15692528), (2192, 9464198), (2644, 7846264), (4384, 4732099), (5288, 3923132), (7159, 2897824), (10576, 1961566), (14318, 1448912), (21152, 980783), (28636, 724456), (57272, 362228), (90557, 229088), (114544, 181114)]