28405575

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{499}}^1$

素因数の和:549

約数の個数: 72

約数和(自身を含む): 58032000

約数和(自身を除く): 29626425

約数列:

[1, 3, 5, 9, 11, 15, 23, 25, 33, 45, 55, 69, 75, 99, 115, 165, 207, 225, 253, 275, 345, 495, 499, 575, 759, 825, 1035, 1265, 1497, 1725, 2277, 2475, 2495, 3795, 4491, 5175, 5489, 6325, 7485, 11385, 11477, 12475, 16467, 18975, 22455, 27445, 34431, 37425, 49401, 56925, 57385, 82335, 103293, 112275, 126247, 137225, 172155, 247005, 286925, 378741, 411675, 516465, 631235, 860775, 1136223, 1235025, 1893705, 2582325, 3156175, 5681115, 9468525, 28405575]

約数ペア:

[(1, 28405575), (3, 9468525), (5, 5681115), (9, 3156175), (11, 2582325), (15, 1893705), (23, 1235025), (25, 1136223), (33, 860775), (45, 631235), (55, 516465), (69, 411675), (75, 378741), (99, 286925), (115, 247005), (165, 172155), (207, 137225), (225, 126247), (253, 112275), (275, 103293), (345, 82335), (495, 57385), (499, 56925), (575, 49401), (759, 37425), (825, 34431), (1035, 27445), (1265, 22455), (1497, 18975), (1725, 16467), (2277, 12475), (2475, 11477), (2495, 11385), (3795, 7485), (4491, 6325), (5175, 5489)]