221000840

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{82463}}^1$

素因数の和:82541

約数の個数: 32

約数和(自身を含む): 504679680

約数和(自身を除く): 283678840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 82463, 164926, 329852, 412315, 659704, 824630, 1649260, 3298520, 5525021, 11050042, 22100084, 27625105, 44200168, 55250210, 110500420, 221000840]

約数ペア:

[(1, 221000840), (2, 110500420), (4, 55250210), (5, 44200168), (8, 27625105), (10, 22100084), (20, 11050042), (40, 5525021), (67, 3298520), (134, 1649260), (268, 824630), (335, 659704), (536, 412315), (670, 329852), (1340, 164926), (2680, 82463)]