128021816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{39709}}^1$

素因数の和:39759

約数の個数: 32

約数和(自身を含む): 266851200

約数和(自身を除く): 138829384

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 39709, 79418, 158836, 317672, 516217, 1032434, 1230979, 2064868, 2461958, 4129736, 4923916, 9847832, 16002727, 32005454, 64010908, 128021816]

約数ペア:

[(1, 128021816), (2, 64010908), (4, 32005454), (8, 16002727), (13, 9847832), (26, 4923916), (31, 4129736), (52, 2461958), (62, 2064868), (104, 1230979), (124, 1032434), (248, 516217), (403, 317672), (806, 158836), (1612, 79418), (3224, 39709)]