261506856

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{20443}}^1$

素因数の和:20506

約数の個数: 64

約数和(自身を含む): 721264320

約数和(自身を除く): 459757464

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 41, 52, 78, 82, 104, 123, 156, 164, 246, 312, 328, 492, 533, 984, 1066, 1599, 2132, 3198, 4264, 6396, 12792, 20443, 40886, 61329, 81772, 122658, 163544, 245316, 265759, 490632, 531518, 797277, 838163, 1063036, 1594554, 1676326, 2126072, 2514489, 3189108, 3352652, 5028978, 6378216, 6705304, 10057956, 10896119, 20115912, 21792238, 32688357, 43584476, 65376714, 87168952, 130753428, 261506856]

約数ペア:

[(1, 261506856), (2, 130753428), (3, 87168952), (4, 65376714), (6, 43584476), (8, 32688357), (12, 21792238), (13, 20115912), (24, 10896119), (26, 10057956), (39, 6705304), (41, 6378216), (52, 5028978), (78, 3352652), (82, 3189108), (104, 2514489), (123, 2126072), (156, 1676326), (164, 1594554), (246, 1063036), (312, 838163), (328, 797277), (492, 531518), (533, 490632), (984, 265759), (1066, 245316), (1599, 163544), (2132, 122658), (3198, 81772), (4264, 61329), (6396, 40886), (12792, 20443)]