25205852

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 52899840

約数和(自身を除く): 27693988

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 71, 124, 142, 217, 284, 409, 434, 497, 818, 868, 994, 1636, 1988, 2201, 2863, 4402, 5726, 8804, 11452, 12679, 15407, 25358, 29039, 30814, 50716, 58078, 61628, 88753, 116156, 177506, 203273, 355012, 406546, 813092, 900209, 1800418, 3600836, 6301463, 12602926, 25205852]

約数ペア:

[(1, 25205852), (2, 12602926), (4, 6301463), (7, 3600836), (14, 1800418), (28, 900209), (31, 813092), (62, 406546), (71, 355012), (124, 203273), (142, 177506), (217, 116156), (284, 88753), (409, 61628), (434, 58078), (497, 50716), (818, 30814), (868, 29039), (994, 25358), (1636, 15407), (1988, 12679), (2201, 11452), (2863, 8804), (4402, 5726)]