20229968

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{839}}^1$

素因数の和:995

約数の個数: 40

約数和(自身を含む): 43122240

約数和(自身を除く): 22892272

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 137, 176, 274, 548, 839, 1096, 1507, 1678, 2192, 3014, 3356, 6028, 6712, 9229, 12056, 13424, 18458, 24112, 36916, 73832, 114943, 147664, 229886, 459772, 919544, 1264373, 1839088, 2528746, 5057492, 10114984, 20229968]

約数ペア:

[(1, 20229968), (2, 10114984), (4, 5057492), (8, 2528746), (11, 1839088), (16, 1264373), (22, 919544), (44, 459772), (88, 229886), (137, 147664), (176, 114943), (274, 73832), (548, 36916), (839, 24112), (1096, 18458), (1507, 13424), (1678, 12056), (2192, 9229), (3014, 6712), (3356, 6028)]