20303320

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1873}}^1$

素因数の和:2155

約数の個数: 32

約数和(自身を含む): 45875520

約数和(自身を除く): 25572200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 1873, 2168, 2710, 3746, 5420, 7492, 9365, 10840, 14984, 18730, 37460, 74920, 507583, 1015166, 2030332, 2537915, 4060664, 5075830, 10151660, 20303320]

約数ペア:

[(1, 20303320), (2, 10151660), (4, 5075830), (5, 4060664), (8, 2537915), (10, 2030332), (20, 1015166), (40, 507583), (271, 74920), (542, 37460), (1084, 18730), (1355, 14984), (1873, 10840), (2168, 9365), (2710, 7492), (3746, 5420)]