81516236

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 153280512

約数和(自身を除く): 71764276

約数列:

[1, 2, 4, 31, 47, 62, 71, 94, 124, 142, 188, 197, 284, 394, 788, 1457, 2201, 2914, 3337, 4402, 5828, 6107, 6674, 8804, 9259, 12214, 13348, 13987, 18518, 24428, 27974, 37036, 55948, 103447, 206894, 287029, 413788, 433597, 574058, 657389, 867194, 1148116, 1314778, 1734388, 2629556, 20379059, 40758118, 81516236]

約数ペア:

[(1, 81516236), (2, 40758118), (4, 20379059), (31, 2629556), (47, 1734388), (62, 1314778), (71, 1148116), (94, 867194), (124, 657389), (142, 574058), (188, 433597), (197, 413788), (284, 287029), (394, 206894), (788, 103447), (1457, 55948), (2201, 37036), (2914, 27974), (3337, 24428), (4402, 18518), (5828, 13987), (6107, 13348), (6674, 12214), (8804, 9259)]