261583128

素因数分解:

$2^3\times 3^3\times {\mathrm{61}}^1\times {\mathrm{19853}}^1$

素因数の和:19929

約数の個数: 64

約数和(自身を含む): 738568800

約数和(自身を除く): 476985672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 61, 72, 108, 122, 183, 216, 244, 366, 488, 549, 732, 1098, 1464, 1647, 2196, 3294, 4392, 6588, 13176, 19853, 39706, 59559, 79412, 119118, 158824, 178677, 238236, 357354, 476472, 536031, 714708, 1072062, 1211033, 1429416, 2144124, 2422066, 3633099, 4288248, 4844132, 7266198, 9688264, 10899297, 14532396, 21798594, 29064792, 32697891, 43597188, 65395782, 87194376, 130791564, 261583128]

約数ペア:

[(1, 261583128), (2, 130791564), (3, 87194376), (4, 65395782), (6, 43597188), (8, 32697891), (9, 29064792), (12, 21798594), (18, 14532396), (24, 10899297), (27, 9688264), (36, 7266198), (54, 4844132), (61, 4288248), (72, 3633099), (108, 2422066), (122, 2144124), (183, 1429416), (216, 1211033), (244, 1072062), (366, 714708), (488, 536031), (549, 476472), (732, 357354), (1098, 238236), (1464, 178677), (1647, 158824), (2196, 119118), (3294, 79412), (4392, 59559), (6588, 39706), (13176, 19853)]