1320407040

素因数分解:

$2^{12}\times 3^1\times 5^1\times {\mathrm{21491}}^1$

素因数の和:21523

約数の個数: 104

約数和(自身を含む): 4224983328

約数和(自身を除く): 2904576288

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, 640, 768, 960, 1024, 1280, 1536, 1920, 2048, 2560, 3072, 3840, 4096, 5120, 6144, 7680, 10240, 12288, 15360, 20480, 21491, 30720, 42982, 61440, 64473, 85964, 107455, 128946, 171928, 214910, 257892, 322365, 343856, 429820, 515784, 644730, 687712, 859640, 1031568, 1289460, 1375424, 1719280, 2063136, 2578920, 2750848, 3438560, 4126272, 5157840, 5501696, 6877120, 8252544, 10315680, 11003392, 13754240, 16505088, 20631360, 22006784, 27508480, 33010176, 41262720, 44013568, 55016960, 66020352, 82525440, 88027136, 110033920, 132040704, 165050880, 220067840, 264081408, 330101760, 440135680, 660203520, 1320407040]

約数ペア:

[(1, 1320407040), (2, 660203520), (3, 440135680), (4, 330101760), (5, 264081408), (6, 220067840), (8, 165050880), (10, 132040704), (12, 110033920), (15, 88027136), (16, 82525440), (20, 66020352), (24, 55016960), (30, 44013568), (32, 41262720), (40, 33010176), (48, 27508480), (60, 22006784), (64, 20631360), (80, 16505088), (96, 13754240), (120, 11003392), (128, 10315680), (160, 8252544), (192, 6877120), (240, 5501696), (256, 5157840), (320, 4126272), (384, 3438560), (480, 2750848), (512, 2578920), (640, 2063136), (768, 1719280), (960, 1375424), (1024, 1289460), (1280, 1031568), (1536, 859640), (1920, 687712), (2048, 644730), (2560, 515784), (3072, 429820), (3840, 343856), (4096, 322365), (5120, 257892), (6144, 214910), (7680, 171928), (10240, 128946), (12288, 107455), (15360, 85964), (20480, 64473), (21491, 61440), (30720, 42982)]