316720160

素因数分解:

$2^5\times 5^1\times {\mathrm{509}}^1\times {\mathrm{3889}}^1$

素因数の和:4413

約数の個数: 48

約数和(自身を含む): 749914200

約数和(自身を除く): 433194040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 509, 1018, 2036, 2545, 3889, 4072, 5090, 7778, 8144, 10180, 15556, 16288, 19445, 20360, 31112, 38890, 40720, 62224, 77780, 81440, 124448, 155560, 311120, 622240, 1979501, 3959002, 7918004, 9897505, 15836008, 19795010, 31672016, 39590020, 63344032, 79180040, 158360080, 316720160]

約数ペア:

[(1, 316720160), (2, 158360080), (4, 79180040), (5, 63344032), (8, 39590020), (10, 31672016), (16, 19795010), (20, 15836008), (32, 9897505), (40, 7918004), (80, 3959002), (160, 1979501), (509, 622240), (1018, 311120), (2036, 155560), (2545, 124448), (3889, 81440), (4072, 77780), (5090, 62224), (7778, 40720), (8144, 38890), (10180, 31112), (15556, 20360), (16288, 19445)]