73920440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3907}}^1$

素因数の和:3972

約数の個数: 64

約数和(自身を含む): 185708160

約数和(自身を除く): 111787720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 3784, 3907, 4730, 7814, 9460, 15628, 18920, 19535, 31256, 39070, 42977, 78140, 85954, 156280, 168001, 171908, 214885, 336002, 343816, 429770, 672004, 840005, 859540, 1344008, 1680010, 1719080, 1848011, 3360020, 3696022, 6720040, 7392044, 9240055, 14784088, 18480110, 36960220, 73920440]

約数ペア:

[(1, 73920440), (2, 36960220), (4, 18480110), (5, 14784088), (8, 9240055), (10, 7392044), (11, 6720040), (20, 3696022), (22, 3360020), (40, 1848011), (43, 1719080), (44, 1680010), (55, 1344008), (86, 859540), (88, 840005), (110, 672004), (172, 429770), (215, 343816), (220, 336002), (344, 214885), (430, 171908), (440, 168001), (473, 156280), (860, 85954), (946, 78140), (1720, 42977), (1892, 39070), (2365, 31256), (3784, 19535), (3907, 18920), (4730, 15628), (7814, 9460)]