28312840

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3593}}^1$

素因数の和:3801

約数の個数: 32

約数和(自身を含む): 64045080

約数和(自身を除く): 35732240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3593, 3940, 7186, 7880, 14372, 17965, 28744, 35930, 71860, 143720, 707821, 1415642, 2831284, 3539105, 5662568, 7078210, 14156420, 28312840]

約数ペア:

[(1, 28312840), (2, 14156420), (4, 7078210), (5, 5662568), (8, 3539105), (10, 2831284), (20, 1415642), (40, 707821), (197, 143720), (394, 71860), (788, 35930), (985, 28744), (1576, 17965), (1970, 14372), (3593, 7880), (3940, 7186)]