81409916

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{439}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 168537600

約数和(自身を除く): 87127684

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 179, 259, 358, 439, 518, 716, 878, 1036, 1253, 1756, 2506, 3073, 5012, 6146, 6623, 12292, 13246, 16243, 26492, 32486, 46361, 64972, 78581, 92722, 113701, 157162, 185444, 227402, 314324, 454804, 550067, 1100134, 2200268, 2907497, 5814994, 11629988, 20352479, 40704958, 81409916]

約数ペア:

[(1, 81409916), (2, 40704958), (4, 20352479), (7, 11629988), (14, 5814994), (28, 2907497), (37, 2200268), (74, 1100134), (148, 550067), (179, 454804), (259, 314324), (358, 227402), (439, 185444), (518, 157162), (716, 113701), (878, 92722), (1036, 78581), (1253, 64972), (1756, 46361), (2506, 32486), (3073, 26492), (5012, 16243), (6146, 13246), (6623, 12292)]