21310080

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1009}}^1$

素因数の和:1042

約数の個数: 128

約数和(自身を含む): 74174400

約数和(自身を除く): 52864320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 128, 132, 160, 165, 176, 192, 220, 240, 264, 320, 330, 352, 384, 440, 480, 528, 640, 660, 704, 880, 960, 1009, 1056, 1320, 1408, 1760, 1920, 2018, 2112, 2640, 3027, 3520, 4036, 4224, 5045, 5280, 6054, 7040, 8072, 10090, 10560, 11099, 12108, 15135, 16144, 20180, 21120, 22198, 24216, 30270, 32288, 33297, 40360, 44396, 48432, 55495, 60540, 64576, 66594, 80720, 88792, 96864, 110990, 121080, 129152, 133188, 161440, 166485, 177584, 193728, 221980, 242160, 266376, 322880, 332970, 355168, 387456, 443960, 484320, 532752, 645760, 665940, 710336, 887920, 968640, 1065504, 1331880, 1420672, 1775840, 1937280, 2131008, 2663760, 3551680, 4262016, 5327520, 7103360, 10655040, 21310080]

約数ペア:

[(1, 21310080), (2, 10655040), (3, 7103360), (4, 5327520), (5, 4262016), (6, 3551680), (8, 2663760), (10, 2131008), (11, 1937280), (12, 1775840), (15, 1420672), (16, 1331880), (20, 1065504), (22, 968640), (24, 887920), (30, 710336), (32, 665940), (33, 645760), (40, 532752), (44, 484320), (48, 443960), (55, 387456), (60, 355168), (64, 332970), (66, 322880), (80, 266376), (88, 242160), (96, 221980), (110, 193728), (120, 177584), (128, 166485), (132, 161440), (160, 133188), (165, 129152), (176, 121080), (192, 110990), (220, 96864), (240, 88792), (264, 80720), (320, 66594), (330, 64576), (352, 60540), (384, 55495), (440, 48432), (480, 44396), (528, 40360), (640, 33297), (660, 32288), (704, 30270), (880, 24216), (960, 22198), (1009, 21120), (1056, 20180), (1320, 16144), (1408, 15135), (1760, 12108), (1920, 11099), (2018, 10560), (2112, 10090), (2640, 8072), (3027, 7040), (3520, 6054), (4036, 5280), (4224, 5045)]