261457716

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{38977}}^1$

素因数の和:39040

約数の個数: 48

約数和(自身を含む): 672292544

約数和(自身を除く): 410834828

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 172, 258, 516, 559, 1118, 1677, 2236, 3354, 6708, 38977, 77954, 116931, 155908, 233862, 467724, 506701, 1013402, 1520103, 1676011, 2026804, 3040206, 3352022, 5028033, 6080412, 6704044, 10056066, 20112132, 21788143, 43576286, 65364429, 87152572, 130728858, 261457716]

約数ペア:

[(1, 261457716), (2, 130728858), (3, 87152572), (4, 65364429), (6, 43576286), (12, 21788143), (13, 20112132), (26, 10056066), (39, 6704044), (43, 6080412), (52, 5028033), (78, 3352022), (86, 3040206), (129, 2026804), (156, 1676011), (172, 1520103), (258, 1013402), (516, 506701), (559, 467724), (1118, 233862), (1677, 155908), (2236, 116931), (3354, 77954), (6708, 38977)]