218487890

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{48661}}^1$

素因数の和:49117

約数の個数: 16

約数和(自身を含む): 394162200

約数和(自身を除く): 175674310

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4490, 48661, 97322, 243305, 486610, 21848789, 43697578, 109243945, 218487890]

約数ペア:

[(1, 218487890), (2, 109243945), (5, 43697578), (10, 21848789), (449, 486610), (898, 243305), (2245, 97322), (4490, 48661)]