27940780

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{4073}}^1$

素因数の和:4103

約数の個数: 48

約数和(自身を含む): 68443200

約数和(自身を除く): 40502420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 4073, 6860, 8146, 16292, 20365, 28511, 40730, 57022, 81460, 114044, 142555, 199577, 285110, 399154, 570220, 798308, 997885, 1397039, 1995770, 2794078, 3991540, 5588156, 6985195, 13970390, 27940780]

約数ペア:

[(1, 27940780), (2, 13970390), (4, 6985195), (5, 5588156), (7, 3991540), (10, 2794078), (14, 1995770), (20, 1397039), (28, 997885), (35, 798308), (49, 570220), (70, 399154), (98, 285110), (140, 199577), (196, 142555), (245, 114044), (343, 81460), (490, 57022), (686, 40730), (980, 28511), (1372, 20365), (1715, 16292), (3430, 8146), (4073, 6860)]