20644174804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^2\times {\mathrm{5501}}^1$

素因数の和:5669

約数の個数: 72

約数和(自身を含む): 42121991520

約数和(自身を除く): 21477816716

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 67, 76, 134, 209, 268, 418, 737, 836, 1273, 1474, 2546, 2948, 4489, 5092, 5501, 8978, 11002, 14003, 17956, 22004, 28006, 49379, 56012, 60511, 85291, 98758, 104519, 121022, 170582, 197516, 209038, 242044, 341164, 368567, 418076, 737134, 938201, 1149709, 1474268, 1876402, 2299418, 3752804, 4054237, 4598836, 7002773, 8108474, 14005546, 16216948, 24693989, 28011092, 49387978, 77030503, 98775956, 154061006, 271633879, 308122012, 469185791, 543267758, 938371582, 1086535516, 1876743164, 5161043701, 10322087402, 20644174804]

約数ペア:

[(1, 20644174804), (2, 10322087402), (4, 5161043701), (11, 1876743164), (19, 1086535516), (22, 938371582), (38, 543267758), (44, 469185791), (67, 308122012), (76, 271633879), (134, 154061006), (209, 98775956), (268, 77030503), (418, 49387978), (737, 28011092), (836, 24693989), (1273, 16216948), (1474, 14005546), (2546, 8108474), (2948, 7002773), (4489, 4598836), (5092, 4054237), (5501, 3752804), (8978, 2299418), (11002, 1876402), (14003, 1474268), (17956, 1149709), (22004, 938201), (28006, 737134), (49379, 418076), (56012, 368567), (60511, 341164), (85291, 242044), (98758, 209038), (104519, 197516), (121022, 170582)]