20820480

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{2711}}^1$

素因数の和:2737

約数の個数: 80

約数和(自身を含む): 66585024

約数和(自身を除く): 45764544

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, 1280, 1536, 1920, 2560, 2711, 3840, 5422, 7680, 8133, 10844, 13555, 16266, 21688, 27110, 32532, 40665, 43376, 54220, 65064, 81330, 86752, 108440, 130128, 162660, 173504, 216880, 260256, 325320, 347008, 433760, 520512, 650640, 694016, 867520, 1041024, 1301280, 1388032, 1735040, 2082048, 2602560, 3470080, 4164096, 5205120, 6940160, 10410240, 20820480]

約数ペア:

[(1, 20820480), (2, 10410240), (3, 6940160), (4, 5205120), (5, 4164096), (6, 3470080), (8, 2602560), (10, 2082048), (12, 1735040), (15, 1388032), (16, 1301280), (20, 1041024), (24, 867520), (30, 694016), (32, 650640), (40, 520512), (48, 433760), (60, 347008), (64, 325320), (80, 260256), (96, 216880), (120, 173504), (128, 162660), (160, 130128), (192, 108440), (240, 86752), (256, 81330), (320, 65064), (384, 54220), (480, 43376), (512, 40665), (640, 32532), (768, 27110), (960, 21688), (1280, 16266), (1536, 13555), (1920, 10844), (2560, 8133), (2711, 7680), (3840, 5422)]