15721497028

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{857}}^1\times {\mathrm{859}}^1$

素因数の和:2020

約数の個数: 48

約数和(自身を含む): 29131502400

約数和(自身を除く): 13410005372

約数列:

[1, 2, 4, 19, 38, 76, 281, 562, 857, 859, 1124, 1714, 1718, 3428, 3436, 5339, 10678, 16283, 16321, 21356, 32566, 32642, 65132, 65284, 240817, 241379, 481634, 482758, 736163, 963268, 965516, 1472326, 2944652, 4575523, 4586201, 9151046, 9172402, 13987097, 18302092, 18344804, 27974194, 55948388, 206861803, 413723606, 827447212, 3930374257, 7860748514, 15721497028]

約数ペア:

[(1, 15721497028), (2, 7860748514), (4, 3930374257), (19, 827447212), (38, 413723606), (76, 206861803), (281, 55948388), (562, 27974194), (857, 18344804), (859, 18302092), (1124, 13987097), (1714, 9172402), (1718, 9151046), (3428, 4586201), (3436, 4575523), (5339, 2944652), (10678, 1472326), (16283, 965516), (16321, 963268), (21356, 736163), (32566, 482758), (32642, 481634), (65132, 241379), (65284, 240817)]