28199205

素因数分解:

$3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2347}}^1$

素因数の和:2450

約数の個数: 32

約数和(自身を含む): 50716800

約数和(自身を除く): 22517595

約数列:

[1, 3, 5, 9, 15, 27, 45, 89, 135, 267, 445, 801, 1335, 2347, 2403, 4005, 7041, 11735, 12015, 21123, 35205, 63369, 105615, 208883, 316845, 626649, 1044415, 1879947, 3133245, 5639841, 9399735, 28199205]

約数ペア:

[(1, 28199205), (3, 9399735), (5, 5639841), (9, 3133245), (15, 1879947), (27, 1044415), (45, 626649), (89, 316845), (135, 208883), (267, 105615), (445, 63369), (801, 35205), (1335, 21123), (2347, 12015), (2403, 11735), (4005, 7041)]