2178768680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{133831}}^1$

素因数の和:133890

約数の個数: 64

約数和(自身を含む): 5492465280

約数和(自身を除く): 3313696600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1480, 1628, 2035, 3256, 4070, 8140, 16280, 133831, 267662, 535324, 669155, 1070648, 1338310, 1472141, 2676620, 2944282, 4951747, 5353240, 5888564, 7360705, 9903494, 11777128, 14721410, 19806988, 24758735, 29442820, 39613976, 49517470, 54469217, 58885640, 99034940, 108938434, 198069880, 217876868, 272346085, 435753736, 544692170, 1089384340, 2178768680]

約数ペア:

[(1, 2178768680), (2, 1089384340), (4, 544692170), (5, 435753736), (8, 272346085), (10, 217876868), (11, 198069880), (20, 108938434), (22, 99034940), (37, 58885640), (40, 54469217), (44, 49517470), (55, 39613976), (74, 29442820), (88, 24758735), (110, 19806988), (148, 14721410), (185, 11777128), (220, 9903494), (296, 7360705), (370, 5888564), (407, 5353240), (440, 4951747), (740, 2944282), (814, 2676620), (1480, 1472141), (1628, 1338310), (2035, 1070648), (3256, 669155), (4070, 535324), (8140, 267662), (16280, 133831)]