20196783920

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3023}}^1\times {\mathrm{3631}}^1$

素因数の和:6690

約数の個数: 80

約数和(自身を含む): 49028861952

約数和(自身を除く): 28832078032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 3023, 3631, 6046, 7262, 12092, 14524, 15115, 18155, 24184, 29048, 30230, 36310, 48368, 58096, 60460, 69529, 72620, 83513, 120920, 139058, 145240, 167026, 241840, 278116, 290480, 334052, 347645, 417565, 556232, 668104, 695290, 835130, 1112464, 1336208, 1390580, 1670260, 2781160, 3340520, 5562320, 6681040, 10976513, 21953026, 43906052, 54882565, 87812104, 109765130, 175624208, 219530260, 252459799, 439060520, 504919598, 878121040, 1009839196, 1262298995, 2019678392, 2524597990, 4039356784, 5049195980, 10098391960, 20196783920]

約数ペア:

[(1, 20196783920), (2, 10098391960), (4, 5049195980), (5, 4039356784), (8, 2524597990), (10, 2019678392), (16, 1262298995), (20, 1009839196), (23, 878121040), (40, 504919598), (46, 439060520), (80, 252459799), (92, 219530260), (115, 175624208), (184, 109765130), (230, 87812104), (368, 54882565), (460, 43906052), (920, 21953026), (1840, 10976513), (3023, 6681040), (3631, 5562320), (6046, 3340520), (7262, 2781160), (12092, 1670260), (14524, 1390580), (15115, 1336208), (18155, 1112464), (24184, 835130), (29048, 695290), (30230, 668104), (36310, 556232), (48368, 417565), (58096, 347645), (60460, 334052), (69529, 290480), (72620, 278116), (83513, 241840), (120920, 167026), (139058, 145240)]