1969880

素因数分解:

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

素因数の和:81

約数の個数: 64

約数和(自身を含む): 5006880

約数和(自身を除く): 3037000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 121, 148, 185, 220, 242, 296, 370, 407, 440, 484, 605, 740, 814, 968, 1210, 1331, 1480, 1628, 2035, 2420, 2662, 3256, 4070, 4477, 4840, 5324, 6655, 8140, 8954, 10648, 13310, 16280, 17908, 22385, 26620, 35816, 44770, 49247, 53240, 89540, 98494, 179080, 196988, 246235, 393976, 492470, 984940, 1969880]

約数ペア:

[(1, 1969880), (2, 984940), (4, 492470), (5, 393976), (8, 246235), (10, 196988), (11, 179080), (20, 98494), (22, 89540), (37, 53240), (40, 49247), (44, 44770), (55, 35816), (74, 26620), (88, 22385), (110, 17908), (121, 16280), (148, 13310), (185, 10648), (220, 8954), (242, 8140), (296, 6655), (370, 5324), (407, 4840), (440, 4477), (484, 4070), (605, 3256), (740, 2662), (814, 2420), (968, 2035), (1210, 1628), (1331, 1480)]