20568376

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{421}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 40106880

約数和(自身を除く): 19538504

約数列:

[1, 2, 4, 8, 31, 62, 124, 197, 248, 394, 421, 788, 842, 1576, 1684, 3368, 6107, 12214, 13051, 24428, 26102, 48856, 52204, 82937, 104408, 165874, 331748, 663496, 2571047, 5142094, 10284188, 20568376]

約数ペア:

[(1, 20568376), (2, 10284188), (4, 5142094), (8, 2571047), (31, 663496), (62, 331748), (124, 165874), (197, 104408), (248, 82937), (394, 52204), (421, 48856), (788, 26102), (842, 24428), (1576, 13051), (1684, 12214), (3368, 6107)]