20074876040

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1786021}}^1$

素因数の和:1786313

約数の個数: 32

約数和(自身を含む): 45329238360

約数和(自身を除く): 25254362320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 11240, 1786021, 3572042, 7144084, 8930105, 14288168, 17860210, 35720420, 71440840, 501871901, 1003743802, 2007487604, 2509359505, 4014975208, 5018719010, 10037438020, 20074876040]

約数ペア:

[(1, 20074876040), (2, 10037438020), (4, 5018719010), (5, 4014975208), (8, 2509359505), (10, 2007487604), (20, 1003743802), (40, 501871901), (281, 71440840), (562, 35720420), (1124, 17860210), (1405, 14288168), (2248, 8930105), (2810, 7144084), (5620, 3572042), (11240, 1786021)]