339912640

素因数分解:

$2^6\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1607}}^1$

素因数の和:2285

約数の個数: 56

約数和(自身を含む): 811145952

約数和(自身を除く): 471233312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 661, 1322, 1607, 2644, 3214, 3305, 5288, 6428, 6610, 8035, 10576, 12856, 13220, 16070, 21152, 25712, 26440, 32140, 42304, 51424, 52880, 64280, 102848, 105760, 128560, 211520, 257120, 514240, 1062227, 2124454, 4248908, 5311135, 8497816, 10622270, 16995632, 21244540, 33991264, 42489080, 67982528, 84978160, 169956320, 339912640]

約数ペア:

[(1, 339912640), (2, 169956320), (4, 84978160), (5, 67982528), (8, 42489080), (10, 33991264), (16, 21244540), (20, 16995632), (32, 10622270), (40, 8497816), (64, 5311135), (80, 4248908), (160, 2124454), (320, 1062227), (661, 514240), (1322, 257120), (1607, 211520), (2644, 128560), (3214, 105760), (3305, 102848), (5288, 64280), (6428, 52880), (6610, 51424), (8035, 42304), (10576, 32140), (12856, 26440), (13220, 25712), (16070, 21152)]