81416615

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{641}}^1$

素因数の和:863

約数の個数: 32

約数和(自身を含む): 118333440

約数和(自身を除く): 36916825

約数列:

[1, 5, 7, 19, 35, 95, 133, 191, 641, 665, 955, 1337, 3205, 3629, 4487, 6685, 12179, 18145, 22435, 25403, 60895, 85253, 122431, 127015, 426265, 612155, 857017, 2326189, 4285085, 11630945, 16283323, 81416615]

約数ペア:

[(1, 81416615), (5, 16283323), (7, 11630945), (19, 4285085), (35, 2326189), (95, 857017), (133, 612155), (191, 426265), (641, 127015), (665, 122431), (955, 85253), (1337, 60895), (3205, 25403), (3629, 22435), (4487, 18145), (6685, 12179)]