280657920

素因数分解:

$2^{15}\times 3^1\times 5^1\times {\mathrm{571}}^1$

素因数の和:609

約数の個数: 128

約数和(自身を含む): 899664480

約数和(自身を除く): 619006560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 571, 640, 768, 960, 1024, 1142, 1280, 1536, 1713, 1920, 2048, 2284, 2560, 2855, 3072, 3426, 3840, 4096, 4568, 5120, 5710, 6144, 6852, 7680, 8192, 8565, 9136, 10240, 11420, 12288, 13704, 15360, 16384, 17130, 18272, 20480, 22840, 24576, 27408, 30720, 32768, 34260, 36544, 40960, 45680, 49152, 54816, 61440, 68520, 73088, 81920, 91360, 98304, 109632, 122880, 137040, 146176, 163840, 182720, 219264, 245760, 274080, 292352, 365440, 438528, 491520, 548160, 584704, 730880, 877056, 1096320, 1169408, 1461760, 1754112, 2192640, 2338816, 2923520, 3508224, 4385280, 4677632, 5847040, 7016448, 8770560, 9355264, 11694080, 14032896, 17541120, 18710528, 23388160, 28065792, 35082240, 46776320, 56131584, 70164480, 93552640, 140328960, 280657920]

約数ペア:

[(1, 280657920), (2, 140328960), (3, 93552640), (4, 70164480), (5, 56131584), (6, 46776320), (8, 35082240), (10, 28065792), (12, 23388160), (15, 18710528), (16, 17541120), (20, 14032896), (24, 11694080), (30, 9355264), (32, 8770560), (40, 7016448), (48, 5847040), (60, 4677632), (64, 4385280), (80, 3508224), (96, 2923520), (120, 2338816), (128, 2192640), (160, 1754112), (192, 1461760), (240, 1169408), (256, 1096320), (320, 877056), (384, 730880), (480, 584704), (512, 548160), (571, 491520), (640, 438528), (768, 365440), (960, 292352), (1024, 274080), (1142, 245760), (1280, 219264), (1536, 182720), (1713, 163840), (1920, 146176), (2048, 137040), (2284, 122880), (2560, 109632), (2855, 98304), (3072, 91360), (3426, 81920), (3840, 73088), (4096, 68520), (4568, 61440), (5120, 54816), (5710, 49152), (6144, 45680), (6852, 40960), (7680, 36544), (8192, 34260), (8565, 32768), (9136, 30720), (10240, 27408), (11420, 24576), (12288, 22840), (13704, 20480), (15360, 18272), (16384, 17130)]