291061940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{86113}}^1$

素因数の和:86148

約数の個数: 36

約数和(自身を含む): 661872204

約数和(自身を除く): 370810264

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 86113, 172226, 344452, 430565, 861130, 1119469, 1722260, 2238938, 4477876, 5597345, 11194690, 14553097, 22389380, 29106194, 58212388, 72765485, 145530970, 291061940]

約数ペア:

[(1, 291061940), (2, 145530970), (4, 72765485), (5, 58212388), (10, 29106194), (13, 22389380), (20, 14553097), (26, 11194690), (52, 5597345), (65, 4477876), (130, 2238938), (169, 1722260), (260, 1119469), (338, 861130), (676, 430565), (845, 344452), (1690, 172226), (3380, 86113)]