137440040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79907}}^1$

素因数の和:79961

約数の個数: 32

約数和(自身を含む): 316435680

約数和(自身を除く): 178995640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 79907, 159814, 319628, 399535, 639256, 799070, 1598140, 3196280, 3436001, 6872002, 13744004, 17180005, 27488008, 34360010, 68720020, 137440040]

約数ペア:

[(1, 137440040), (2, 68720020), (4, 34360010), (5, 27488008), (8, 17180005), (10, 13744004), (20, 6872002), (40, 3436001), (43, 3196280), (86, 1598140), (172, 799070), (215, 639256), (344, 399535), (430, 319628), (860, 159814), (1720, 79907)]