28541890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{1213}}^1$

素因数の和:1414

約数の個数: 32

約数和(自身を含む): 55678896

約数和(自身を除く): 27137006

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 181, 362, 905, 1213, 1810, 2353, 2426, 4706, 6065, 11765, 12130, 15769, 23530, 31538, 78845, 157690, 219553, 439106, 1097765, 2195530, 2854189, 5708378, 14270945, 28541890]

約数ペア:

[(1, 28541890), (2, 14270945), (5, 5708378), (10, 2854189), (13, 2195530), (26, 1097765), (65, 439106), (130, 219553), (181, 157690), (362, 78845), (905, 31538), (1213, 23530), (1810, 15769), (2353, 12130), (2426, 11765), (4706, 6065)]