287287923

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 453519360

約数和(自身を除く): 166231437

約数列:

[1, 3, 13, 19, 39, 47, 57, 73, 113, 141, 219, 247, 339, 611, 741, 893, 949, 1387, 1469, 1833, 2147, 2679, 2847, 3431, 4161, 4407, 5311, 6441, 8249, 10293, 11609, 15933, 18031, 24747, 27911, 34827, 44603, 54093, 65189, 69043, 83733, 100909, 107237, 133809, 156731, 195567, 207129, 302727, 321711, 387703, 470193, 847457, 1163109, 1311817, 2037503, 2542371, 3935451, 5040139, 6112509, 7366357, 15120417, 22099071, 95762641, 287287923]

約数ペア:

[(1, 287287923), (3, 95762641), (13, 22099071), (19, 15120417), (39, 7366357), (47, 6112509), (57, 5040139), (73, 3935451), (113, 2542371), (141, 2037503), (219, 1311817), (247, 1163109), (339, 847457), (611, 470193), (741, 387703), (893, 321711), (949, 302727), (1387, 207129), (1469, 195567), (1833, 156731), (2147, 133809), (2679, 107237), (2847, 100909), (3431, 83733), (4161, 69043), (4407, 65189), (5311, 54093), (6441, 44603), (8249, 34827), (10293, 27911), (11609, 24747), (15933, 18031)]