290951680

素因数分解:

$2^9\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1277}}^1$

素因数の和:1389

約数の個数: 80

約数和(自身を含む): 705992760

約数和(自身を除く): 415041080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 256, 320, 356, 445, 512, 640, 712, 890, 1277, 1280, 1424, 1780, 2554, 2560, 2848, 3560, 5108, 5696, 6385, 7120, 10216, 11392, 12770, 14240, 20432, 22784, 25540, 28480, 40864, 45568, 51080, 56960, 81728, 102160, 113653, 113920, 163456, 204320, 227306, 227840, 326912, 408640, 454612, 568265, 653824, 817280, 909224, 1136530, 1634560, 1818448, 2273060, 3269120, 3636896, 4546120, 7273792, 9092240, 14547584, 18184480, 29095168, 36368960, 58190336, 72737920, 145475840, 290951680]

約数ペア:

[(1, 290951680), (2, 145475840), (4, 72737920), (5, 58190336), (8, 36368960), (10, 29095168), (16, 18184480), (20, 14547584), (32, 9092240), (40, 7273792), (64, 4546120), (80, 3636896), (89, 3269120), (128, 2273060), (160, 1818448), (178, 1634560), (256, 1136530), (320, 909224), (356, 817280), (445, 653824), (512, 568265), (640, 454612), (712, 408640), (890, 326912), (1277, 227840), (1280, 227306), (1424, 204320), (1780, 163456), (2554, 113920), (2560, 113653), (2848, 102160), (3560, 81728), (5108, 56960), (5696, 51080), (6385, 45568), (7120, 40864), (10216, 28480), (11392, 25540), (12770, 22784), (14240, 20432)]