181293320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{787}}^1$

素因数の和:1254

約数の個数: 64

約数和(自身を含む): 440838720

約数和(自身を除く): 259545400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 443, 520, 787, 886, 1574, 1772, 2215, 3148, 3544, 3935, 4430, 5759, 6296, 7870, 8860, 10231, 11518, 15740, 17720, 20462, 23036, 28795, 31480, 40924, 46072, 51155, 57590, 81848, 102310, 115180, 204620, 230360, 348641, 409240, 697282, 1394564, 1743205, 2789128, 3486410, 4532333, 6972820, 9064666, 13945640, 18129332, 22661665, 36258664, 45323330, 90646660, 181293320]

約数ペア:

[(1, 181293320), (2, 90646660), (4, 45323330), (5, 36258664), (8, 22661665), (10, 18129332), (13, 13945640), (20, 9064666), (26, 6972820), (40, 4532333), (52, 3486410), (65, 2789128), (104, 1743205), (130, 1394564), (260, 697282), (443, 409240), (520, 348641), (787, 230360), (886, 204620), (1574, 115180), (1772, 102310), (2215, 81848), (3148, 57590), (3544, 51155), (3935, 46072), (4430, 40924), (5759, 31480), (6296, 28795), (7870, 23036), (8860, 20462), (10231, 17720), (11518, 15740)]