1388402470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1525717}}^1$

素因数の和:1525744

約数の個数: 32

約数和(自身を含む): 3075847488

約数和(自身を除く): 1687445018

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 1525717, 3051434, 7628585, 10680019, 15257170, 19834321, 21360038, 39668642, 53400095, 99171605, 106800190, 138840247, 198343210, 277680494, 694201235, 1388402470]

約数ペア:

[(1, 1388402470), (2, 694201235), (5, 277680494), (7, 198343210), (10, 138840247), (13, 106800190), (14, 99171605), (26, 53400095), (35, 39668642), (65, 21360038), (70, 19834321), (91, 15257170), (130, 10680019), (182, 7628585), (455, 3051434), (910, 1525717)]