27991575

素因数分解:

$3^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{601}}^1$

素因数の和:646

約数の個数: 60

約数和(自身を含む): 54194448

約数和(自身を除く): 26202873

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 81, 115, 135, 207, 225, 345, 405, 575, 601, 621, 675, 1035, 1725, 1803, 1863, 2025, 3005, 3105, 5175, 5409, 9015, 9315, 13823, 15025, 15525, 16227, 27045, 41469, 45075, 46575, 48681, 69115, 81135, 124407, 135225, 207345, 243405, 345575, 373221, 405675, 622035, 1036725, 1119663, 1217025, 1866105, 3110175, 5598315, 9330525, 27991575]

約数ペア:

[(1, 27991575), (3, 9330525), (5, 5598315), (9, 3110175), (15, 1866105), (23, 1217025), (25, 1119663), (27, 1036725), (45, 622035), (69, 405675), (75, 373221), (81, 345575), (115, 243405), (135, 207345), (207, 135225), (225, 124407), (345, 81135), (405, 69115), (575, 48681), (601, 46575), (621, 45075), (675, 41469), (1035, 27045), (1725, 16227), (1803, 15525), (1863, 15025), (2025, 13823), (3005, 9315), (3105, 9015), (5175, 5409)]