15857140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{859}}^1$

素因数の和:952

約数の個数: 48

約数和(自身を含む): 36408960

約数和(自身を除く): 20551820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 859, 923, 1420, 1718, 1846, 3436, 3692, 4295, 4615, 8590, 9230, 11167, 17180, 18460, 22334, 44668, 55835, 60989, 111670, 121978, 223340, 243956, 304945, 609890, 792857, 1219780, 1585714, 3171428, 3964285, 7928570, 15857140]

約数ペア:

[(1, 15857140), (2, 7928570), (4, 3964285), (5, 3171428), (10, 1585714), (13, 1219780), (20, 792857), (26, 609890), (52, 304945), (65, 243956), (71, 223340), (130, 121978), (142, 111670), (260, 60989), (284, 55835), (355, 44668), (710, 22334), (859, 18460), (923, 17180), (1420, 11167), (1718, 9230), (1846, 8590), (3436, 4615), (3692, 4295)]