139435720

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{8693}}^1$

素因数の和:9105

約数の個数: 32

約数和(自身を含む): 314548920

約数和(自身を除く): 175113200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 8020, 8693, 16040, 17386, 34772, 43465, 69544, 86930, 173860, 347720, 3485893, 6971786, 13943572, 17429465, 27887144, 34858930, 69717860, 139435720]

約数ペア:

[(1, 139435720), (2, 69717860), (4, 34858930), (5, 27887144), (8, 17429465), (10, 13943572), (20, 6971786), (40, 3485893), (401, 347720), (802, 173860), (1604, 86930), (2005, 69544), (3208, 43465), (4010, 34772), (8020, 17386), (8693, 16040)]