20117440

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{1283}}^1$

素因数の和:1314

約数の個数: 84

約数和(自身を含む): 55769256

約数和(自身を除く): 35651816

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, 1283, 1568, 1960, 2240, 2566, 3136, 3920, 5132, 6415, 7840, 8981, 10264, 12830, 15680, 17962, 20528, 25660, 35924, 41056, 44905, 51320, 62867, 71848, 82112, 89810, 102640, 125734, 143696, 179620, 205280, 251468, 287392, 314335, 359240, 410560, 502936, 574784, 628670, 718480, 1005872, 1257340, 1436960, 2011744, 2514680, 2873920, 4023488, 5029360, 10058720, 20117440]

約数ペア:

[(1, 20117440), (2, 10058720), (4, 5029360), (5, 4023488), (7, 2873920), (8, 2514680), (10, 2011744), (14, 1436960), (16, 1257340), (20, 1005872), (28, 718480), (32, 628670), (35, 574784), (40, 502936), (49, 410560), (56, 359240), (64, 314335), (70, 287392), (80, 251468), (98, 205280), (112, 179620), (140, 143696), (160, 125734), (196, 102640), (224, 89810), (245, 82112), (280, 71848), (320, 62867), (392, 51320), (448, 44905), (490, 41056), (560, 35924), (784, 25660), (980, 20528), (1120, 17962), (1283, 15680), (1568, 12830), (1960, 10264), (2240, 8981), (2566, 7840), (3136, 6415), (3920, 5132)]