2809781845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{133831}}^1$

素因数の和:133885

約数の個数: 32

約数和(自身を含む): 4047079680

約数和(自身を除く): 1237297835

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 1105, 1235, 1615, 4199, 20995, 133831, 669155, 1739803, 2275127, 2542789, 8699015, 11375635, 12713945, 29576651, 33056257, 43227413, 147883255, 165281285, 216137065, 561956369, 2809781845]

約数ペア:

[(1, 2809781845), (5, 561956369), (13, 216137065), (17, 165281285), (19, 147883255), (65, 43227413), (85, 33056257), (95, 29576651), (221, 12713945), (247, 11375635), (323, 8699015), (1105, 2542789), (1235, 2275127), (1615, 1739803), (4199, 669155), (20995, 133831)]