80863720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41257}}^1$

素因数の和:41282

約数の個数: 48

約数和(自身を含む): 211653540

約数和(自身を除く): 130789820

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, 41257, 82514, 165028, 206285, 288799, 330056, 412570, 577598, 825140, 1155196, 1443995, 1650280, 2021593, 2310392, 2887990, 4043186, 5775980, 8086372, 10107965, 11551960, 16172744, 20215930, 40431860, 80863720]

約数ペア:

[(1, 80863720), (2, 40431860), (4, 20215930), (5, 16172744), (7, 11551960), (8, 10107965), (10, 8086372), (14, 5775980), (20, 4043186), (28, 2887990), (35, 2310392), (40, 2021593), (49, 1650280), (56, 1443995), (70, 1155196), (98, 825140), (140, 577598), (196, 412570), (245, 330056), (280, 288799), (392, 206285), (490, 165028), (980, 82514), (1960, 41257)]