20213888320

素因数分解:

$2^6\times 5^1\times {\mathrm{149}}^1\times {\mathrm{423949}}^1$

素因数の和:424115

約数の個数: 56

約数和(自身を含む): 48457485000

約数和(自身を除く): 28243596680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 149, 160, 298, 320, 596, 745, 1192, 1490, 2384, 2980, 4768, 5960, 9536, 11920, 23840, 47680, 423949, 847898, 1695796, 2119745, 3391592, 4239490, 6783184, 8478980, 13566368, 16957960, 27132736, 33915920, 63168401, 67831840, 126336802, 135663680, 252673604, 315842005, 505347208, 631684010, 1010694416, 1263368020, 2021388832, 2526736040, 4042777664, 5053472080, 10106944160, 20213888320]

約数ペア:

[(1, 20213888320), (2, 10106944160), (4, 5053472080), (5, 4042777664), (8, 2526736040), (10, 2021388832), (16, 1263368020), (20, 1010694416), (32, 631684010), (40, 505347208), (64, 315842005), (80, 252673604), (149, 135663680), (160, 126336802), (298, 67831840), (320, 63168401), (596, 33915920), (745, 27132736), (1192, 16957960), (1490, 13566368), (2384, 8478980), (2980, 6783184), (4768, 4239490), (5960, 3391592), (9536, 2119745), (11920, 1695796), (23840, 847898), (47680, 423949)]