29778975

素因数分解:

$3^3\times 5^2\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:457

約数の個数: 48

約数和(自身を含む): 55249440

約数和(自身を除く): 25470465

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 157, 225, 281, 471, 675, 785, 843, 1405, 1413, 2355, 2529, 3925, 4215, 4239, 7025, 7065, 7587, 11775, 12645, 21075, 21195, 35325, 37935, 44117, 63225, 105975, 132351, 189675, 220585, 397053, 661755, 1102925, 1191159, 1985265, 3308775, 5955795, 9926325, 29778975]

約数ペア:

[(1, 29778975), (3, 9926325), (5, 5955795), (9, 3308775), (15, 1985265), (25, 1191159), (27, 1102925), (45, 661755), (75, 397053), (135, 220585), (157, 189675), (225, 132351), (281, 105975), (471, 63225), (675, 44117), (785, 37935), (843, 35325), (1405, 21195), (1413, 21075), (2355, 12645), (2529, 11775), (3925, 7587), (4215, 7065), (4239, 7025)]