20408520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15461}}^1$

素因数の和:15486

約数の個数: 64

約数和(自身を含む): 66795840

約数和(自身を除く): 46387320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 15461, 30922, 46383, 61844, 77305, 92766, 123688, 154610, 170071, 185532, 231915, 309220, 340142, 371064, 463830, 510213, 618440, 680284, 850355, 927660, 1020426, 1360568, 1700710, 1855320, 2040852, 2551065, 3401420, 4081704, 5102130, 6802840, 10204260, 20408520]

約数ペア:

[(1, 20408520), (2, 10204260), (3, 6802840), (4, 5102130), (5, 4081704), (6, 3401420), (8, 2551065), (10, 2040852), (11, 1855320), (12, 1700710), (15, 1360568), (20, 1020426), (22, 927660), (24, 850355), (30, 680284), (33, 618440), (40, 510213), (44, 463830), (55, 371064), (60, 340142), (66, 309220), (88, 231915), (110, 185532), (120, 170071), (132, 154610), (165, 123688), (220, 92766), (264, 77305), (330, 61844), (440, 46383), (660, 30922), (1320, 15461)]