2218720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{283}}^1$

素因数の和:312

約数の個数: 72

約数和(自身を含む): 6119064

約数和(自身を除く): 3900344

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 283, 392, 490, 560, 566, 784, 980, 1120, 1132, 1415, 1568, 1960, 1981, 2264, 2830, 3920, 3962, 4528, 5660, 7840, 7924, 9056, 9905, 11320, 13867, 15848, 19810, 22640, 27734, 31696, 39620, 45280, 55468, 63392, 69335, 79240, 110936, 138670, 158480, 221872, 277340, 316960, 443744, 554680, 1109360, 2218720]

約数ペア:

[(1, 2218720), (2, 1109360), (4, 554680), (5, 443744), (7, 316960), (8, 277340), (10, 221872), (14, 158480), (16, 138670), (20, 110936), (28, 79240), (32, 69335), (35, 63392), (40, 55468), (49, 45280), (56, 39620), (70, 31696), (80, 27734), (98, 22640), (112, 19810), (140, 15848), (160, 13867), (196, 11320), (224, 9905), (245, 9056), (280, 7924), (283, 7840), (392, 5660), (490, 4528), (560, 3962), (566, 3920), (784, 2830), (980, 2264), (1120, 1981), (1132, 1960), (1415, 1568)]