81569320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41617}}^1$

素因数の和:41642

約数の個数: 48

約数和(自身を含む): 213500340

約数和(自身を除く): 131931020

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 41617, 83234, 166468, 208085, 291319, 332936, 416170, 582638, 832340, 1165276, 1456595, 1664680, 2039233, 2330552, 2913190, 4078466, 5826380, 8156932, 10196165, 11652760, 16313864, 20392330, 40784660, 81569320]

約数ペア:

[(1, 81569320), (2, 40784660), (4, 20392330), (5, 16313864), (7, 11652760), (8, 10196165), (10, 8156932), (14, 5826380), (20, 4078466), (28, 2913190), (35, 2330552), (40, 2039233), (49, 1664680), (56, 1456595), (70, 1165276), (98, 832340), (140, 582638), (196, 416170), (245, 332936), (280, 291319), (392, 208085), (490, 166468), (980, 83234), (1960, 41617)]