2561865

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 4406400

約数和(自身を除く): 1844535

約数列:

[1, 3, 5, 15, 19, 57, 89, 95, 101, 267, 285, 303, 445, 505, 1335, 1515, 1691, 1919, 5073, 5757, 8455, 8989, 9595, 25365, 26967, 28785, 44945, 134835, 170791, 512373, 853955, 2561865]

約数ペア:

[(1, 2561865), (3, 853955), (5, 512373), (15, 170791), (19, 134835), (57, 44945), (89, 28785), (95, 26967), (101, 25365), (267, 9595), (285, 8989), (303, 8455), (445, 5757), (505, 5073), (1335, 1919), (1515, 1691)]