1388971925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{9923}}^1$

素因数の和:10453

約数の個数: 24

約数和(自身を含む): 1882781280

約数和(自身を除く): 493809355

約数列:

[1, 5, 11, 25, 55, 275, 509, 2545, 5599, 9923, 12725, 27995, 49615, 109153, 139975, 248075, 545765, 2728825, 5050807, 25254035, 55558877, 126270175, 277794385, 1388971925]

約数ペア:

[(1, 1388971925), (5, 277794385), (11, 126270175), (25, 55558877), (55, 25254035), (275, 5050807), (509, 2728825), (2545, 545765), (5599, 248075), (9923, 139975), (12725, 109153), (27995, 49615)]