20321796784

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{523}}^1\times {\mathrm{45821}}^1$

素因数の和:46405

約数の個数: 40

約数和(自身を含む): 40193958672

約数和(自身を除く): 19872161888

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 523, 848, 1046, 2092, 4184, 8368, 27719, 45821, 55438, 91642, 110876, 183284, 221752, 366568, 443504, 733136, 2428513, 4857026, 9714052, 19428104, 23964383, 38856208, 47928766, 95857532, 191715064, 383430128, 1270112299, 2540224598, 5080449196, 10160898392, 20321796784]

約数ペア:

[(1, 20321796784), (2, 10160898392), (4, 5080449196), (8, 2540224598), (16, 1270112299), (53, 383430128), (106, 191715064), (212, 95857532), (424, 47928766), (523, 38856208), (848, 23964383), (1046, 19428104), (2092, 9714052), (4184, 4857026), (8368, 2428513), (27719, 733136), (45821, 443504), (55438, 366568), (91642, 221752), (110876, 183284)]