138981760

素因数分解:

$2^7\times 5^1\times {\mathrm{397}}^1\times {\mathrm{547}}^1$

素因数の和:963

約数の個数: 64

約数和(自身を含む): 333699120

約数和(自身を除く): 194717360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 397, 547, 640, 794, 1094, 1588, 1985, 2188, 2735, 3176, 3970, 4376, 5470, 6352, 7940, 8752, 10940, 12704, 15880, 17504, 21880, 25408, 31760, 35008, 43760, 50816, 63520, 70016, 87520, 127040, 175040, 217159, 254080, 350080, 434318, 868636, 1085795, 1737272, 2171590, 3474544, 4343180, 6949088, 8686360, 13898176, 17372720, 27796352, 34745440, 69490880, 138981760]

約数ペア:

[(1, 138981760), (2, 69490880), (4, 34745440), (5, 27796352), (8, 17372720), (10, 13898176), (16, 8686360), (20, 6949088), (32, 4343180), (40, 3474544), (64, 2171590), (80, 1737272), (128, 1085795), (160, 868636), (320, 434318), (397, 350080), (547, 254080), (640, 217159), (794, 175040), (1094, 127040), (1588, 87520), (1985, 70016), (2188, 63520), (2735, 50816), (3176, 43760), (3970, 35008), (4376, 31760), (5470, 25408), (6352, 21880), (7940, 17504), (8752, 15880), (10940, 12704)]