201639405776

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{663287519}}^1$

素因数の和:663287546

約数の個数: 20

約数和(自身を含む): 411238262400

約数和(自身を除く): 209598856624

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 663287519, 1326575038, 2653150076, 5306300152, 10612600304, 12602462861, 25204925722, 50409851444, 100819702888, 201639405776]

約数ペア:

[(1, 201639405776), (2, 100819702888), (4, 50409851444), (8, 25204925722), (16, 12602462861), (19, 10612600304), (38, 5306300152), (76, 2653150076), (152, 1326575038), (304, 663287519)]