20942870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2269}}^1$

素因数の和:2360

約数の個数: 32

約数和(自身を含む): 41186880

約数和(自身を除く): 20244010

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 355, 710, 923, 1846, 2269, 4538, 4615, 9230, 11345, 22690, 29497, 58994, 147485, 161099, 294970, 322198, 805495, 1610990, 2094287, 4188574, 10471435, 20942870]

約数ペア:

[(1, 20942870), (2, 10471435), (5, 4188574), (10, 2094287), (13, 1610990), (26, 805495), (65, 322198), (71, 294970), (130, 161099), (142, 147485), (355, 58994), (710, 29497), (923, 22690), (1846, 11345), (2269, 9230), (4538, 4615)]