168709840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{162221}}^1$

素因数の和:162247

約数の個数: 40

約数和(自身を含む): 422426088

約数和(自身を除く): 253716248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 162221, 324442, 648884, 811105, 1297768, 1622210, 2108873, 2595536, 3244420, 4217746, 6488840, 8435492, 10544365, 12977680, 16870984, 21088730, 33741968, 42177460, 84354920, 168709840]

約数ペア:

[(1, 168709840), (2, 84354920), (4, 42177460), (5, 33741968), (8, 21088730), (10, 16870984), (13, 12977680), (16, 10544365), (20, 8435492), (26, 6488840), (40, 4217746), (52, 3244420), (65, 2595536), (80, 2108873), (104, 1622210), (130, 1297768), (208, 811105), (260, 648884), (520, 324442), (1040, 162221)]