20899440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29027}}^1$

素因数の和:29046

約数の個数: 60

約数和(自身を含む): 70189704

約数和(自身を除く): 49290264

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, 29027, 58054, 87081, 116108, 145135, 174162, 232216, 261243, 290270, 348324, 435405, 464432, 522486, 580540, 696648, 870810, 1044972, 1161080, 1306215, 1393296, 1741620, 2089944, 2322160, 2612430, 3483240, 4179888, 5224860, 6966480, 10449720, 20899440]

約数ペア:

[(1, 20899440), (2, 10449720), (3, 6966480), (4, 5224860), (5, 4179888), (6, 3483240), (8, 2612430), (9, 2322160), (10, 2089944), (12, 1741620), (15, 1393296), (16, 1306215), (18, 1161080), (20, 1044972), (24, 870810), (30, 696648), (36, 580540), (40, 522486), (45, 464432), (48, 435405), (60, 348324), (72, 290270), (80, 261243), (90, 232216), (120, 174162), (144, 145135), (180, 116108), (240, 87081), (360, 58054), (720, 29027)]