21570560

素因数分解:

$2^{10}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{383}}^1$

素因数の和:419

約数の個数: 88

約数和(自身を含む): 56595456

約数和(自身を除く): 35024896

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 383, 440, 512, 640, 704, 766, 880, 1024, 1280, 1408, 1532, 1760, 1915, 2560, 2816, 3064, 3520, 3830, 4213, 5120, 5632, 6128, 7040, 7660, 8426, 11264, 12256, 14080, 15320, 16852, 21065, 24512, 28160, 30640, 33704, 42130, 49024, 56320, 61280, 67408, 84260, 98048, 122560, 134816, 168520, 196096, 245120, 269632, 337040, 392192, 490240, 539264, 674080, 980480, 1078528, 1348160, 1960960, 2157056, 2696320, 4314112, 5392640, 10785280, 21570560]

約数ペア:

[(1, 21570560), (2, 10785280), (4, 5392640), (5, 4314112), (8, 2696320), (10, 2157056), (11, 1960960), (16, 1348160), (20, 1078528), (22, 980480), (32, 674080), (40, 539264), (44, 490240), (55, 392192), (64, 337040), (80, 269632), (88, 245120), (110, 196096), (128, 168520), (160, 134816), (176, 122560), (220, 98048), (256, 84260), (320, 67408), (352, 61280), (383, 56320), (440, 49024), (512, 42130), (640, 33704), (704, 30640), (766, 28160), (880, 24512), (1024, 21065), (1280, 16852), (1408, 15320), (1532, 14080), (1760, 12256), (1915, 11264), (2560, 8426), (2816, 7660), (3064, 7040), (3520, 6128), (3830, 5632), (4213, 5120)]