208065040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{152989}}^1$

素因数の和:153019

約数の個数: 40

約数和(自身を含む): 512210520

約数和(自身を除く): 304145480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 152989, 305978, 611956, 764945, 1223912, 1529890, 2447824, 2600813, 3059780, 5201626, 6119560, 10403252, 12239120, 13004065, 20806504, 26008130, 41613008, 52016260, 104032520, 208065040]

約数ペア:

[(1, 208065040), (2, 104032520), (4, 52016260), (5, 41613008), (8, 26008130), (10, 20806504), (16, 13004065), (17, 12239120), (20, 10403252), (34, 6119560), (40, 5201626), (68, 3059780), (80, 2600813), (85, 2447824), (136, 1529890), (170, 1223912), (272, 764945), (340, 611956), (680, 305978), (1360, 152989)]