20199973970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2789}}^1\times {\mathrm{65843}}^1$

素因数の和:68650

約数の個数: 32

約数和(自身を含む): 39680228160

約数和(自身を除く): 19480254190

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 2789, 5578, 13945, 27890, 30679, 61358, 65843, 131686, 153395, 306790, 329215, 658430, 724273, 1448546, 3621365, 7242730, 183636127, 367272254, 918180635, 1836361270, 2019997397, 4039994794, 10099986985, 20199973970]

約数ペア:

[(1, 20199973970), (2, 10099986985), (5, 4039994794), (10, 2019997397), (11, 1836361270), (22, 918180635), (55, 367272254), (110, 183636127), (2789, 7242730), (5578, 3621365), (13945, 1448546), (27890, 724273), (30679, 658430), (61358, 329215), (65843, 306790), (131686, 153395)]