255955640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{1061}}^1$

素因数の和:1272

約数の個数: 64

約数和(自身を含む): 595654560

約数和(自身を除く): 339698920

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 163, 185, 296, 326, 370, 652, 740, 815, 1061, 1304, 1480, 1630, 2122, 3260, 4244, 5305, 6031, 6520, 8488, 10610, 12062, 21220, 24124, 30155, 39257, 42440, 48248, 60310, 78514, 120620, 157028, 172943, 196285, 241240, 314056, 345886, 392570, 691772, 785140, 864715, 1383544, 1570280, 1729430, 3458860, 6398891, 6917720, 12797782, 25595564, 31994455, 51191128, 63988910, 127977820, 255955640]

約数ペア:

[(1, 255955640), (2, 127977820), (4, 63988910), (5, 51191128), (8, 31994455), (10, 25595564), (20, 12797782), (37, 6917720), (40, 6398891), (74, 3458860), (148, 1729430), (163, 1570280), (185, 1383544), (296, 864715), (326, 785140), (370, 691772), (652, 392570), (740, 345886), (815, 314056), (1061, 241240), (1304, 196285), (1480, 172943), (1630, 157028), (2122, 120620), (3260, 78514), (4244, 60310), (5305, 48248), (6031, 42440), (6520, 39257), (8488, 30155), (10610, 24124), (12062, 21220)]