80620960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{71983}}^1$

素因数の和:72005

約数の個数: 48

約数和(自身を含む): 217679616

約数和(自身を除く): 137058656

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 71983, 143966, 287932, 359915, 503881, 575864, 719830, 1007762, 1151728, 1439660, 2015524, 2303456, 2519405, 2879320, 4031048, 5038810, 5758640, 8062096, 10077620, 11517280, 16124192, 20155240, 40310480, 80620960]

約数ペア:

[(1, 80620960), (2, 40310480), (4, 20155240), (5, 16124192), (7, 11517280), (8, 10077620), (10, 8062096), (14, 5758640), (16, 5038810), (20, 4031048), (28, 2879320), (32, 2519405), (35, 2303456), (40, 2015524), (56, 1439660), (70, 1151728), (80, 1007762), (112, 719830), (140, 575864), (160, 503881), (224, 359915), (280, 287932), (560, 143966), (1120, 71983)]