1213520785

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{143527}}^1$

素因数の和:143640

約数の個数: 16

約数和(自身を含む): 1550102400

約数和(自身を除く): 336581615

約数列:

[1, 5, 19, 89, 95, 445, 1691, 8455, 143527, 717635, 2727013, 12773903, 13635065, 63869515, 242704157, 1213520785]

約数ペア:

[(1, 1213520785), (5, 242704157), (19, 63869515), (89, 13635065), (95, 12773903), (445, 2727013), (1691, 717635), (8455, 143527)]