281639085

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:327

約数の個数: 128

約数和(自身を含む): 600929280

約数和(自身を除く): 319290195

約数列:

[1, 3, 5, 7, 13, 15, 17, 21, 35, 39, 51, 53, 65, 85, 91, 105, 119, 159, 195, 221, 229, 255, 265, 273, 357, 371, 455, 595, 663, 687, 689, 795, 901, 1105, 1113, 1145, 1365, 1547, 1603, 1785, 1855, 2067, 2703, 2977, 3315, 3435, 3445, 3893, 4505, 4641, 4809, 4823, 5565, 6307, 7735, 8015, 8931, 10335, 11679, 11713, 12137, 13515, 14469, 14885, 18921, 19465, 20839, 23205, 24045, 24115, 27251, 31535, 35139, 36411, 44655, 50609, 58395, 58565, 60685, 62517, 72345, 81753, 81991, 84959, 94605, 104195, 136255, 151827, 157781, 175695, 182055, 206329, 245973, 253045, 254877, 312585, 354263, 408765, 409955, 424795, 473343, 618987, 759135, 788905, 1031645, 1062789, 1104467, 1229865, 1274385, 1444303, 1771315, 2366715, 2682277, 3094935, 3313401, 4332909, 5313945, 5522335, 7221515, 8046831, 13411385, 16567005, 18775939, 21664545, 40234155, 56327817, 93879695, 281639085]

約数ペア:

[(1, 281639085), (3, 93879695), (5, 56327817), (7, 40234155), (13, 21664545), (15, 18775939), (17, 16567005), (21, 13411385), (35, 8046831), (39, 7221515), (51, 5522335), (53, 5313945), (65, 4332909), (85, 3313401), (91, 3094935), (105, 2682277), (119, 2366715), (159, 1771315), (195, 1444303), (221, 1274385), (229, 1229865), (255, 1104467), (265, 1062789), (273, 1031645), (357, 788905), (371, 759135), (455, 618987), (595, 473343), (663, 424795), (687, 409955), (689, 408765), (795, 354263), (901, 312585), (1105, 254877), (1113, 253045), (1145, 245973), (1365, 206329), (1547, 182055), (1603, 175695), (1785, 157781), (1855, 151827), (2067, 136255), (2703, 104195), (2977, 94605), (3315, 84959), (3435, 81991), (3445, 81753), (3893, 72345), (4505, 62517), (4641, 60685), (4809, 58565), (4823, 58395), (5565, 50609), (6307, 44655), (7735, 36411), (8015, 35139), (8931, 31535), (10335, 27251), (11679, 24115), (11713, 24045), (12137, 23205), (13515, 20839), (14469, 19465), (14885, 18921)]