28670020

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^2\times {\mathrm{269}}^1$

素因数の和:424

約数の個数: 36

約数和(自身を含む): 61270020

約数和(自身を除く): 32600000

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 269, 292, 365, 538, 730, 1076, 1345, 1460, 2690, 5329, 5380, 10658, 19637, 21316, 26645, 39274, 53290, 78548, 98185, 106580, 196370, 392740, 1433501, 2867002, 5734004, 7167505, 14335010, 28670020]

約数ペア:

[(1, 28670020), (2, 14335010), (4, 7167505), (5, 5734004), (10, 2867002), (20, 1433501), (73, 392740), (146, 196370), (269, 106580), (292, 98185), (365, 78548), (538, 53290), (730, 39274), (1076, 26645), (1345, 21316), (1460, 19637), (2690, 10658), (5329, 5380)]