2561900535

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{563}}^1\times {\mathrm{911}}^1$

素因数の和:1525

約数の個数: 64

約数和(自身を含む): 4691036160

約数和(自身を除く): 2129135625

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 563, 911, 999, 1665, 1689, 2733, 2815, 4555, 4995, 5067, 8199, 8445, 13665, 15201, 20831, 24597, 25335, 33707, 40995, 62493, 76005, 101121, 104155, 122985, 168535, 187479, 303363, 312465, 505605, 512893, 562437, 910089, 937395, 1516815, 1538679, 2564465, 2812185, 4550445, 4616037, 7693395, 13848111, 18977041, 23080185, 56931123, 69240555, 94885205, 170793369, 284655615, 512380107, 853966845, 2561900535]

約数ペア:

[(1, 2561900535), (3, 853966845), (5, 512380107), (9, 284655615), (15, 170793369), (27, 94885205), (37, 69240555), (45, 56931123), (111, 23080185), (135, 18977041), (185, 13848111), (333, 7693395), (555, 4616037), (563, 4550445), (911, 2812185), (999, 2564465), (1665, 1538679), (1689, 1516815), (2733, 937395), (2815, 910089), (4555, 562437), (4995, 512893), (5067, 505605), (8199, 312465), (8445, 303363), (13665, 187479), (15201, 168535), (20831, 122985), (24597, 104155), (25335, 101121), (33707, 76005), (40995, 62493)]