291298995

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1723}}^1$

素因数の和:1781

約数の個数: 72

約数和(自身を含む): 577960656

約数和(自身を除く): 286661661

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 289, 585, 663, 765, 867, 1105, 1445, 1723, 1989, 2601, 3315, 3757, 4335, 5169, 8615, 9945, 11271, 13005, 15507, 18785, 22399, 25845, 29291, 33813, 56355, 67197, 77535, 87873, 111995, 146455, 169065, 201591, 263619, 335985, 380783, 439365, 497947, 1007955, 1142349, 1318095, 1493841, 1903915, 2489735, 3427047, 4481523, 5711745, 6473311, 7469205, 17135235, 19419933, 22407615, 32366555, 58259799, 97099665, 291298995]

約数ペア:

[(1, 291298995), (3, 97099665), (5, 58259799), (9, 32366555), (13, 22407615), (15, 19419933), (17, 17135235), (39, 7469205), (45, 6473311), (51, 5711745), (65, 4481523), (85, 3427047), (117, 2489735), (153, 1903915), (195, 1493841), (221, 1318095), (255, 1142349), (289, 1007955), (585, 497947), (663, 439365), (765, 380783), (867, 335985), (1105, 263619), (1445, 201591), (1723, 169065), (1989, 146455), (2601, 111995), (3315, 87873), (3757, 77535), (4335, 67197), (5169, 56355), (8615, 33813), (9945, 29291), (11271, 25845), (13005, 22399), (15507, 18785)]