201227780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{773953}}^1$

素因数の和:773975

約数の個数: 24

約数和(自身を含む): 455084952

約数和(自身を除く): 253857172

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 773953, 1547906, 3095812, 3869765, 7739530, 10061389, 15479060, 20122778, 40245556, 50306945, 100613890, 201227780]

約数ペア:

[(1, 201227780), (2, 100613890), (4, 50306945), (5, 40245556), (10, 20122778), (13, 15479060), (20, 10061389), (26, 7739530), (52, 3869765), (65, 3095812), (130, 1547906), (260, 773953)]