28779120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{39971}}^1$

素因数の和:39990

約数の個数: 60

約数和(自身を含む): 96652296

約数和(自身を除く): 67873176

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 39971, 79942, 119913, 159884, 199855, 239826, 319768, 359739, 399710, 479652, 599565, 639536, 719478, 799420, 959304, 1199130, 1438956, 1598840, 1798695, 1918608, 2398260, 2877912, 3197680, 3597390, 4796520, 5755824, 7194780, 9593040, 14389560, 28779120]

約数ペア:

[(1, 28779120), (2, 14389560), (3, 9593040), (4, 7194780), (5, 5755824), (6, 4796520), (8, 3597390), (9, 3197680), (10, 2877912), (12, 2398260), (15, 1918608), (16, 1798695), (18, 1598840), (20, 1438956), (24, 1199130), (30, 959304), (36, 799420), (40, 719478), (45, 639536), (48, 599565), (60, 479652), (72, 399710), (80, 359739), (90, 319768), (120, 239826), (144, 199855), (180, 159884), (240, 119913), (360, 79942), (720, 39971)]