31164380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1789}}^1$

素因数の和:1878

約数の個数: 48

約数和(自身を含む): 71571360

約数和(自身を除く): 40406980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 1789, 3484, 3578, 4355, 7156, 8710, 8945, 17420, 17890, 23257, 35780, 46514, 93028, 116285, 119863, 232570, 239726, 465140, 479452, 599315, 1198630, 1558219, 2397260, 3116438, 6232876, 7791095, 15582190, 31164380]

約数ペア:

[(1, 31164380), (2, 15582190), (4, 7791095), (5, 6232876), (10, 3116438), (13, 2397260), (20, 1558219), (26, 1198630), (52, 599315), (65, 479452), (67, 465140), (130, 239726), (134, 232570), (260, 119863), (268, 116285), (335, 93028), (670, 46514), (871, 35780), (1340, 23257), (1742, 17890), (1789, 17420), (3484, 8945), (3578, 8710), (4355, 7156)]