721297920

素因数分解:

$2^9\times 3^1\times 5^1\times 7^1\times {\mathrm{13417}}^1$

素因数の和:13450

約数の個数: 160

約数和(自身を含む): 2635509888

約数和(自身を除く): 1914211968

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 512, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1536, 1680, 1792, 1920, 2240, 2560, 2688, 3360, 3584, 3840, 4480, 5376, 6720, 7680, 8960, 10752, 13417, 13440, 17920, 26834, 26880, 40251, 53668, 53760, 67085, 80502, 93919, 107336, 134170, 161004, 187838, 201255, 214672, 268340, 281757, 322008, 375676, 402510, 429344, 469595, 536680, 563514, 644016, 751352, 805020, 858688, 939190, 1073360, 1127028, 1288032, 1408785, 1502704, 1610040, 1717376, 1878380, 2146720, 2254056, 2576064, 2817570, 3005408, 3220080, 3434752, 3756760, 4293440, 4508112, 5152128, 5635140, 6010816, 6440160, 6869504, 7513520, 8586880, 9016224, 10304256, 11270280, 12021632, 12880320, 15027040, 17173760, 18032448, 20608512, 22540560, 24043264, 25760640, 30054080, 34347520, 36064896, 45081120, 48086528, 51521280, 60108160, 72129792, 90162240, 103042560, 120216320, 144259584, 180324480, 240432640, 360648960, 721297920]

約数ペア:

[(1, 721297920), (2, 360648960), (3, 240432640), (4, 180324480), (5, 144259584), (6, 120216320), (7, 103042560), (8, 90162240), (10, 72129792), (12, 60108160), (14, 51521280), (15, 48086528), (16, 45081120), (20, 36064896), (21, 34347520), (24, 30054080), (28, 25760640), (30, 24043264), (32, 22540560), (35, 20608512), (40, 18032448), (42, 17173760), (48, 15027040), (56, 12880320), (60, 12021632), (64, 11270280), (70, 10304256), (80, 9016224), (84, 8586880), (96, 7513520), (105, 6869504), (112, 6440160), (120, 6010816), (128, 5635140), (140, 5152128), (160, 4508112), (168, 4293440), (192, 3756760), (210, 3434752), (224, 3220080), (240, 3005408), (256, 2817570), (280, 2576064), (320, 2254056), (336, 2146720), (384, 1878380), (420, 1717376), (448, 1610040), (480, 1502704), (512, 1408785), (560, 1288032), (640, 1127028), (672, 1073360), (768, 939190), (840, 858688), (896, 805020), (960, 751352), (1120, 644016), (1280, 563514), (1344, 536680), (1536, 469595), (1680, 429344), (1792, 402510), (1920, 375676), (2240, 322008), (2560, 281757), (2688, 268340), (3360, 214672), (3584, 201255), (3840, 187838), (4480, 161004), (5376, 134170), (6720, 107336), (7680, 93919), (8960, 80502), (10752, 67085), (13417, 53760), (13440, 53668), (17920, 40251), (26834, 26880)]