17974580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{269}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 40960080

約数和(自身を除く): 22985500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 257, 260, 269, 514, 538, 1028, 1076, 1285, 1345, 2570, 2690, 3341, 3497, 5140, 5380, 6682, 6994, 13364, 13988, 16705, 17485, 33410, 34970, 66820, 69133, 69940, 138266, 276532, 345665, 691330, 898729, 1382660, 1797458, 3594916, 4493645, 8987290, 17974580]

約数ペア:

[(1, 17974580), (2, 8987290), (4, 4493645), (5, 3594916), (10, 1797458), (13, 1382660), (20, 898729), (26, 691330), (52, 345665), (65, 276532), (130, 138266), (257, 69940), (260, 69133), (269, 66820), (514, 34970), (538, 33410), (1028, 17485), (1076, 16705), (1285, 13988), (1345, 13364), (2570, 6994), (2690, 6682), (3341, 5380), (3497, 5140)]