178449940

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{2131}}^1$

素因数の和:2272

約数の個数: 48

約数和(自身を含む): 386830080

約数和(自身を除く): 208380140

約数列:

[1, 2, 4, 5, 10, 20, 53, 79, 106, 158, 212, 265, 316, 395, 530, 790, 1060, 1580, 2131, 4187, 4262, 8374, 8524, 10655, 16748, 20935, 21310, 41870, 42620, 83740, 112943, 168349, 225886, 336698, 451772, 564715, 673396, 841745, 1129430, 1683490, 2258860, 3366980, 8922497, 17844994, 35689988, 44612485, 89224970, 178449940]

約数ペア:

[(1, 178449940), (2, 89224970), (4, 44612485), (5, 35689988), (10, 17844994), (20, 8922497), (53, 3366980), (79, 2258860), (106, 1683490), (158, 1129430), (212, 841745), (265, 673396), (316, 564715), (395, 451772), (530, 336698), (790, 225886), (1060, 168349), (1580, 112943), (2131, 83740), (4187, 42620), (4262, 41870), (8374, 21310), (8524, 20935), (10655, 16748)]