20157641664

素因数分解:

$2^6\times 3^1\times {\mathrm{421}}^1\times {\mathrm{249377}}^1$

素因数の和:249813

約数の個数: 56

約数和(自身を含む): 53460658128

約数和(自身を除く): 33303016464

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 192, 421, 842, 1263, 1684, 2526, 3368, 5052, 6736, 10104, 13472, 20208, 26944, 40416, 80832, 249377, 498754, 748131, 997508, 1496262, 1995016, 2992524, 3990032, 5985048, 7980064, 11970096, 15960128, 23940192, 47880384, 104987717, 209975434, 314963151, 419950868, 629926302, 839901736, 1259852604, 1679803472, 2519705208, 3359606944, 5039410416, 6719213888, 10078820832, 20157641664]

約数ペア:

[(1, 20157641664), (2, 10078820832), (3, 6719213888), (4, 5039410416), (6, 3359606944), (8, 2519705208), (12, 1679803472), (16, 1259852604), (24, 839901736), (32, 629926302), (48, 419950868), (64, 314963151), (96, 209975434), (192, 104987717), (421, 47880384), (842, 23940192), (1263, 15960128), (1684, 11970096), (2526, 7980064), (3368, 5985048), (5052, 3990032), (6736, 2992524), (10104, 1995016), (13472, 1496262), (20208, 997508), (26944, 748131), (40416, 498754), (80832, 249377)]