28761885

素因数分解:

$3^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1511}}^1$

素因数の和:1575

約数の個数: 40

約数和(自身を含む): 52690176

約数和(自身を除く): 23928291

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 81, 135, 141, 235, 405, 423, 705, 1269, 1511, 2115, 3807, 4533, 6345, 7555, 13599, 19035, 22665, 40797, 67995, 71017, 122391, 203985, 213051, 355085, 611955, 639153, 1065255, 1917459, 3195765, 5752377, 9587295, 28761885]

約数ペア:

[(1, 28761885), (3, 9587295), (5, 5752377), (9, 3195765), (15, 1917459), (27, 1065255), (45, 639153), (47, 611955), (81, 355085), (135, 213051), (141, 203985), (235, 122391), (405, 71017), (423, 67995), (705, 40797), (1269, 22665), (1511, 19035), (2115, 13599), (3807, 7555), (4533, 6345)]