139387780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{32117}}^1$

素因数の和:32164

約数の個数: 48

約数和(自身を含む): 345332736

約数和(自身を除く): 205944956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 32117, 64234, 128468, 160585, 224819, 321170, 449638, 642340, 899276, 995627, 1124095, 1991254, 2248190, 3982508, 4496380, 4978135, 6969389, 9956270, 13938778, 19912540, 27877556, 34846945, 69693890, 139387780]

約数ペア:

[(1, 139387780), (2, 69693890), (4, 34846945), (5, 27877556), (7, 19912540), (10, 13938778), (14, 9956270), (20, 6969389), (28, 4978135), (31, 4496380), (35, 3982508), (62, 2248190), (70, 1991254), (124, 1124095), (140, 995627), (155, 899276), (217, 642340), (310, 449638), (434, 321170), (620, 224819), (868, 160585), (1085, 128468), (2170, 64234), (4340, 32117)]