216020115

素因数分解:

$3^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1511}}^1$

素因数の和:1881

約数の個数: 40

約数和(自身を含む): 388590048

約数和(自身を除く): 172569933

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 353, 405, 1059, 1511, 1765, 3177, 4533, 5295, 7555, 9531, 13599, 15885, 22665, 28593, 40797, 47655, 67995, 122391, 142965, 203985, 533383, 611955, 1600149, 2666915, 4800447, 8000745, 14401341, 24002235, 43204023, 72006705, 216020115]

約数ペア:

[(1, 216020115), (3, 72006705), (5, 43204023), (9, 24002235), (15, 14401341), (27, 8000745), (45, 4800447), (81, 2666915), (135, 1600149), (353, 611955), (405, 533383), (1059, 203985), (1511, 142965), (1765, 122391), (3177, 67995), (4533, 47655), (5295, 40797), (7555, 28593), (9531, 22665), (13599, 15885)]