138570880

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{30931}}^1$

素因数の和:30957

約数の個数: 64

約数和(自身を含む): 378607680

約数和(自身を除く): 240036800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 30931, 61862, 123724, 154655, 216517, 247448, 309310, 433034, 494896, 618620, 866068, 989792, 1082585, 1237240, 1732136, 1979584, 2165170, 2474480, 3464272, 3959168, 4330340, 4948960, 6928544, 8660680, 9897920, 13857088, 17321360, 19795840, 27714176, 34642720, 69285440, 138570880]

約数ペア:

[(1, 138570880), (2, 69285440), (4, 34642720), (5, 27714176), (7, 19795840), (8, 17321360), (10, 13857088), (14, 9897920), (16, 8660680), (20, 6928544), (28, 4948960), (32, 4330340), (35, 3959168), (40, 3464272), (56, 2474480), (64, 2165170), (70, 1979584), (80, 1732136), (112, 1237240), (128, 1082585), (140, 989792), (160, 866068), (224, 618620), (280, 494896), (320, 433034), (448, 309310), (560, 247448), (640, 216517), (896, 154655), (1120, 123724), (2240, 61862), (4480, 30931)]