215364620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{1291}}^1$

素因数の和:1758

約数の個数: 48

約数和(自身を含む): 477523200

約数和(自身を除く): 262158580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 439, 878, 1291, 1756, 2195, 2582, 4390, 5164, 6455, 8341, 8780, 12910, 16682, 24529, 25820, 33364, 41705, 49058, 83410, 98116, 122645, 166820, 245290, 490580, 566749, 1133498, 2266996, 2833745, 5667490, 10768231, 11334980, 21536462, 43072924, 53841155, 107682310, 215364620]

約数ペア:

[(1, 215364620), (2, 107682310), (4, 53841155), (5, 43072924), (10, 21536462), (19, 11334980), (20, 10768231), (38, 5667490), (76, 2833745), (95, 2266996), (190, 1133498), (380, 566749), (439, 490580), (878, 245290), (1291, 166820), (1756, 122645), (2195, 98116), (2582, 83410), (4390, 49058), (5164, 41705), (6455, 33364), (8341, 25820), (8780, 24529), (12910, 16682)]