20804867728

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{2671}}^1\times {\mathrm{16787}}^1$

素因数の和:19495

約数の個数: 40

約数和(自身を含む): 41717508480

約数和(自身を除く): 20912640752

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 2671, 5342, 10684, 16787, 21368, 33574, 42736, 67148, 77459, 134296, 154918, 268592, 309836, 486823, 619672, 973646, 1239344, 1947292, 3894584, 7789168, 44838077, 89676154, 179352308, 358704616, 717409232, 1300304233, 2600608466, 5201216932, 10402433864, 20804867728]

約数ペア:

[(1, 20804867728), (2, 10402433864), (4, 5201216932), (8, 2600608466), (16, 1300304233), (29, 717409232), (58, 358704616), (116, 179352308), (232, 89676154), (464, 44838077), (2671, 7789168), (5342, 3894584), (10684, 1947292), (16787, 1239344), (21368, 973646), (33574, 619672), (42736, 486823), (67148, 309836), (77459, 268592), (134296, 154918)]