761720

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 1738800

約数和(自身を除く): 977080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 139, 274, 278, 548, 556, 685, 695, 1096, 1112, 1370, 1390, 2740, 2780, 5480, 5560, 19043, 38086, 76172, 95215, 152344, 190430, 380860, 761720]

約数ペア:

[(1, 761720), (2, 380860), (4, 190430), (5, 152344), (8, 95215), (10, 76172), (20, 38086), (40, 19043), (137, 5560), (139, 5480), (274, 2780), (278, 2740), (548, 1390), (556, 1370), (685, 1112), (695, 1096)]