399429136

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{281}}^1\times {\mathrm{1217}}^1$

素因数の和:1579

約数の個数: 40

約数和(自身を含む): 787933944

約数和(自身を除く): 388504808

約数列:

[1, 2, 4, 8, 16, 73, 146, 281, 292, 562, 584, 1124, 1168, 1217, 2248, 2434, 4496, 4868, 9736, 19472, 20513, 41026, 82052, 88841, 164104, 177682, 328208, 341977, 355364, 683954, 710728, 1367908, 1421456, 2735816, 5471632, 24964321, 49928642, 99857284, 199714568, 399429136]

約数ペア:

[(1, 399429136), (2, 199714568), (4, 99857284), (8, 49928642), (16, 24964321), (73, 5471632), (146, 2735816), (281, 1421456), (292, 1367908), (562, 710728), (584, 683954), (1124, 355364), (1168, 341977), (1217, 328208), (2248, 177682), (2434, 164104), (4496, 88841), (4868, 82052), (9736, 41026), (19472, 20513)]