261246720

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{9719}}^1$

素因数の和:9750

約数の個数: 144

約数和(自身を含む): 953648640

約数和(自身を除く): 692401920

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, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3360, 3840, 4480, 5376, 6720, 8960, 9719, 13440, 19438, 26880, 29157, 38876, 48595, 58314, 68033, 77752, 97190, 116628, 136066, 145785, 155504, 194380, 204099, 233256, 272132, 291570, 311008, 340165, 388760, 408198, 466512, 544264, 583140, 622016, 680330, 777520, 816396, 933024, 1020495, 1088528, 1166280, 1244032, 1360660, 1555040, 1632792, 1866048, 2040990, 2177056, 2332560, 2488064, 2721320, 3110080, 3265584, 3732096, 4081980, 4354112, 4665120, 5442640, 6220160, 6531168, 7464192, 8163960, 8708224, 9330240, 10885280, 12440320, 13062336, 16327920, 17416448, 18660480, 21770560, 26124672, 32655840, 37320960, 43541120, 52249344, 65311680, 87082240, 130623360, 261246720]

約数ペア:

[(1, 261246720), (2, 130623360), (3, 87082240), (4, 65311680), (5, 52249344), (6, 43541120), (7, 37320960), (8, 32655840), (10, 26124672), (12, 21770560), (14, 18660480), (15, 17416448), (16, 16327920), (20, 13062336), (21, 12440320), (24, 10885280), (28, 9330240), (30, 8708224), (32, 8163960), (35, 7464192), (40, 6531168), (42, 6220160), (48, 5442640), (56, 4665120), (60, 4354112), (64, 4081980), (70, 3732096), (80, 3265584), (84, 3110080), (96, 2721320), (105, 2488064), (112, 2332560), (120, 2177056), (128, 2040990), (140, 1866048), (160, 1632792), (168, 1555040), (192, 1360660), (210, 1244032), (224, 1166280), (240, 1088528), (256, 1020495), (280, 933024), (320, 816396), (336, 777520), (384, 680330), (420, 622016), (448, 583140), (480, 544264), (560, 466512), (640, 408198), (672, 388760), (768, 340165), (840, 311008), (896, 291570), (960, 272132), (1120, 233256), (1280, 204099), (1344, 194380), (1680, 155504), (1792, 145785), (1920, 136066), (2240, 116628), (2688, 97190), (3360, 77752), (3840, 68033), (4480, 58314), (5376, 48595), (6720, 38876), (8960, 29157), (9719, 26880), (13440, 19438)]