26389880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1621}}^1$

素因数の和:1680

約数の個数: 64

約数和(自身を含む): 66566880

約数和(自身を除く): 40177000

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, 1621, 1628, 2035, 3242, 3256, 4070, 6484, 8105, 8140, 12968, 16210, 16280, 17831, 32420, 35662, 59977, 64840, 71324, 89155, 119954, 142648, 178310, 239908, 299885, 356620, 479816, 599770, 659747, 713240, 1199540, 1319494, 2399080, 2638988, 3298735, 5277976, 6597470, 13194940, 26389880]

約数ペア:

[(1, 26389880), (2, 13194940), (4, 6597470), (5, 5277976), (8, 3298735), (10, 2638988), (11, 2399080), (20, 1319494), (22, 1199540), (37, 713240), (40, 659747), (44, 599770), (55, 479816), (74, 356620), (88, 299885), (110, 239908), (148, 178310), (185, 142648), (220, 119954), (296, 89155), (370, 71324), (407, 64840), (440, 59977), (740, 35662), (814, 32420), (1480, 17831), (1621, 16280), (1628, 16210), (2035, 12968), (3242, 8140), (3256, 8105), (4070, 6484)]