1388467440

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{642809}}^1$

素因数の和:642831

約数の個数: 80

約数和(自身を含む): 4782506400

約数和(自身を除く): 3394038960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 642809, 1285618, 1928427, 2571236, 3214045, 3856854, 5142472, 5785281, 6428090, 7713708, 9642135, 10284944, 11570562, 12856180, 15427416, 17355843, 19284270, 23141124, 25712360, 28926405, 30854832, 34711686, 38568540, 46282248, 51424720, 57852810, 69423372, 77137080, 86779215, 92564496, 115705620, 138846744, 154274160, 173558430, 231411240, 277693488, 347116860, 462822480, 694233720, 1388467440]

約数ペア:

[(1, 1388467440), (2, 694233720), (3, 462822480), (4, 347116860), (5, 277693488), (6, 231411240), (8, 173558430), (9, 154274160), (10, 138846744), (12, 115705620), (15, 92564496), (16, 86779215), (18, 77137080), (20, 69423372), (24, 57852810), (27, 51424720), (30, 46282248), (36, 38568540), (40, 34711686), (45, 30854832), (48, 28926405), (54, 25712360), (60, 23141124), (72, 19284270), (80, 17355843), (90, 15427416), (108, 12856180), (120, 11570562), (135, 10284944), (144, 9642135), (180, 7713708), (216, 6428090), (240, 5785281), (270, 5142472), (360, 3856854), (432, 3214045), (540, 2571236), (720, 1928427), (1080, 1285618), (2160, 642809)]