20823120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28921}}^1$

素因数の和:28940

約数の個数: 60

約数和(自身を含む): 69933396

約数和(自身を除く): 49110276

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, 28921, 57842, 86763, 115684, 144605, 173526, 231368, 260289, 289210, 347052, 433815, 462736, 520578, 578420, 694104, 867630, 1041156, 1156840, 1301445, 1388208, 1735260, 2082312, 2313680, 2602890, 3470520, 4164624, 5205780, 6941040, 10411560, 20823120]

約数ペア:

[(1, 20823120), (2, 10411560), (3, 6941040), (4, 5205780), (5, 4164624), (6, 3470520), (8, 2602890), (9, 2313680), (10, 2082312), (12, 1735260), (15, 1388208), (16, 1301445), (18, 1156840), (20, 1041156), (24, 867630), (30, 694104), (36, 578420), (40, 520578), (45, 462736), (48, 433815), (60, 347052), (72, 289210), (80, 260289), (90, 231368), (120, 173526), (144, 144605), (180, 115684), (240, 86763), (360, 57842), (720, 28921)]