209247985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{79411}}^1$

素因数の和:79464

約数の個数: 16

約数和(自身を含む): 274447872

約数和(自身を除く): 65199887

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 79411, 397055, 1349987, 2461741, 6749935, 12308705, 41849597, 209247985]

約数ペア:

[(1, 209247985), (5, 41849597), (17, 12308705), (31, 6749935), (85, 2461741), (155, 1349987), (527, 397055), (2635, 79411)]