128873920

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{8219}}^1$

素因数の和:8250

約数の個数: 84

約数和(自身を含む): 357027480

約数和(自身を除く): 228153560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 2240, 3136, 3920, 7840, 8219, 15680, 16438, 32876, 41095, 57533, 65752, 82190, 115066, 131504, 164380, 230132, 263008, 287665, 328760, 402731, 460264, 526016, 575330, 657520, 805462, 920528, 1150660, 1315040, 1610924, 1841056, 2013655, 2301320, 2630080, 3221848, 3682112, 4027310, 4602640, 6443696, 8054620, 9205280, 12887392, 16109240, 18410560, 25774784, 32218480, 64436960, 128873920]

約数ペア:

[(1, 128873920), (2, 64436960), (4, 32218480), (5, 25774784), (7, 18410560), (8, 16109240), (10, 12887392), (14, 9205280), (16, 8054620), (20, 6443696), (28, 4602640), (32, 4027310), (35, 3682112), (40, 3221848), (49, 2630080), (56, 2301320), (64, 2013655), (70, 1841056), (80, 1610924), (98, 1315040), (112, 1150660), (140, 920528), (160, 805462), (196, 657520), (224, 575330), (245, 526016), (280, 460264), (320, 402731), (392, 328760), (448, 287665), (490, 263008), (560, 230132), (784, 164380), (980, 131504), (1120, 115066), (1568, 82190), (1960, 65752), (2240, 57533), (3136, 41095), (3920, 32876), (7840, 16438), (8219, 15680)]