2563160

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{461}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 5821200

約数和(自身を除く): 3258040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 461, 556, 695, 922, 1112, 1390, 1844, 2305, 2780, 3688, 4610, 5560, 9220, 18440, 64079, 128158, 256316, 320395, 512632, 640790, 1281580, 2563160]

約数ペア:

[(1, 2563160), (2, 1281580), (4, 640790), (5, 512632), (8, 320395), (10, 256316), (20, 128158), (40, 64079), (139, 18440), (278, 9220), (461, 5560), (556, 4610), (695, 3688), (922, 2780), (1112, 2305), (1390, 1844)]