15431390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 31464288

約数和(自身を除く): 16032898

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 169, 230, 299, 338, 397, 598, 794, 845, 1495, 1690, 1985, 2990, 3887, 3970, 5161, 7774, 9131, 10322, 18262, 19435, 25805, 38870, 45655, 51610, 67093, 91310, 118703, 134186, 237406, 335465, 593515, 670930, 1187030, 1543139, 3086278, 7715695, 15431390]

約数ペア:

[(1, 15431390), (2, 7715695), (5, 3086278), (10, 1543139), (13, 1187030), (23, 670930), (26, 593515), (46, 335465), (65, 237406), (115, 134186), (130, 118703), (169, 91310), (230, 67093), (299, 51610), (338, 45655), (397, 38870), (598, 25805), (794, 19435), (845, 18262), (1495, 10322), (1690, 9131), (1985, 7774), (2990, 5161), (3887, 3970)]