61907780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{641}}^1$

素因数の和:1100

約数の個数: 48

約数和(自身を含む): 142369920

約数和(自身を除く): 80462140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 439, 641, 878, 1282, 1756, 2195, 2564, 3205, 4390, 4829, 6410, 7051, 8780, 9658, 12820, 14102, 19316, 24145, 28204, 35255, 48290, 70510, 96580, 141020, 281399, 562798, 1125596, 1406995, 2813990, 3095389, 5627980, 6190778, 12381556, 15476945, 30953890, 61907780]

約数ペア:

[(1, 61907780), (2, 30953890), (4, 15476945), (5, 12381556), (10, 6190778), (11, 5627980), (20, 3095389), (22, 2813990), (44, 1406995), (55, 1125596), (110, 562798), (220, 281399), (439, 141020), (641, 96580), (878, 70510), (1282, 48290), (1756, 35255), (2195, 28204), (2564, 24145), (3205, 19316), (4390, 14102), (4829, 12820), (6410, 9658), (7051, 8780)]