121260520

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{19309}}^1$

素因数の和:19477

約数の個数: 32

約数和(自身を含む): 274588200

約数和(自身を除く): 153327680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 19309, 38618, 77236, 96545, 154472, 193090, 386180, 772360, 3031513, 6063026, 12126052, 15157565, 24252104, 30315130, 60630260, 121260520]

約数ペア:

[(1, 121260520), (2, 60630260), (4, 30315130), (5, 24252104), (8, 15157565), (10, 12126052), (20, 6063026), (40, 3031513), (157, 772360), (314, 386180), (628, 193090), (785, 154472), (1256, 96545), (1570, 77236), (3140, 38618), (6280, 19309)]