20243766512

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{128203}}^1$

素因数の和:128421

約数の個数: 40

約数和(自身を含む): 40061185920

約数和(自身を除く): 19817419408

約数列:

[1, 2, 4, 8, 16, 71, 139, 142, 278, 284, 556, 568, 1112, 1136, 2224, 9869, 19738, 39476, 78952, 128203, 157904, 256406, 512812, 1025624, 2051248, 9102413, 17820217, 18204826, 35640434, 36409652, 71280868, 72819304, 142561736, 145638608, 285123472, 1265235407, 2530470814, 5060941628, 10121883256, 20243766512]

約数ペア:

[(1, 20243766512), (2, 10121883256), (4, 5060941628), (8, 2530470814), (16, 1265235407), (71, 285123472), (139, 145638608), (142, 142561736), (278, 72819304), (284, 71280868), (556, 36409652), (568, 35640434), (1112, 18204826), (1136, 17820217), (2224, 9102413), (9869, 2051248), (19738, 1025624), (39476, 512812), (78952, 256406), (128203, 157904)]