18682720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{2383}}^1$

素因数の和:2412

約数の個数: 72

約数和(自身を含む): 51365664

約数和(自身を除く): 32682944

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, 392, 490, 560, 784, 980, 1120, 1568, 1960, 2383, 3920, 4766, 7840, 9532, 11915, 16681, 19064, 23830, 33362, 38128, 47660, 66724, 76256, 83405, 95320, 116767, 133448, 166810, 190640, 233534, 266896, 333620, 381280, 467068, 533792, 583835, 667240, 934136, 1167670, 1334480, 1868272, 2335340, 2668960, 3736544, 4670680, 9341360, 18682720]

約数ペア:

[(1, 18682720), (2, 9341360), (4, 4670680), (5, 3736544), (7, 2668960), (8, 2335340), (10, 1868272), (14, 1334480), (16, 1167670), (20, 934136), (28, 667240), (32, 583835), (35, 533792), (40, 467068), (49, 381280), (56, 333620), (70, 266896), (80, 233534), (98, 190640), (112, 166810), (140, 133448), (160, 116767), (196, 95320), (224, 83405), (245, 76256), (280, 66724), (392, 47660), (490, 38128), (560, 33362), (784, 23830), (980, 19064), (1120, 16681), (1568, 11915), (1960, 9532), (2383, 7840), (3920, 4766)]