20797209220

素因数分解:

$2^2\times 5^1\times {\mathrm{20483}}^1\times {\mathrm{50767}}^1$

素因数の和:71259

約数の個数: 24

約数和(自身を含む): 43677131904

約数和(自身を除く): 22879922684

約数列:

[1, 2, 4, 5, 10, 20, 20483, 40966, 50767, 81932, 101534, 102415, 203068, 204830, 253835, 409660, 507670, 1015340, 1039860461, 2079720922, 4159441844, 5199302305, 10398604610, 20797209220]

約数ペア:

[(1, 20797209220), (2, 10398604610), (4, 5199302305), (5, 4159441844), (10, 2079720922), (20, 1039860461), (20483, 1015340), (40966, 507670), (50767, 409660), (81932, 253835), (101534, 204830), (102415, 203068)]