28643175

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 57103488

約数和(自身を除く): 28460313

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 71, 75, 99, 163, 165, 213, 225, 275, 355, 489, 495, 639, 781, 815, 825, 1065, 1467, 1775, 1793, 2343, 2445, 2475, 3195, 3905, 4075, 5325, 5379, 7029, 7335, 8965, 11573, 11715, 12225, 15975, 16137, 19525, 26895, 34719, 35145, 36675, 44825, 57865, 58575, 80685, 104157, 127303, 134475, 173595, 175725, 289325, 381909, 403425, 520785, 636515, 867975, 1145727, 1909545, 2603925, 3182575, 5728635, 9547725, 28643175]

約数ペア:

[(1, 28643175), (3, 9547725), (5, 5728635), (9, 3182575), (11, 2603925), (15, 1909545), (25, 1145727), (33, 867975), (45, 636515), (55, 520785), (71, 403425), (75, 381909), (99, 289325), (163, 175725), (165, 173595), (213, 134475), (225, 127303), (275, 104157), (355, 80685), (489, 58575), (495, 57865), (639, 44825), (781, 36675), (815, 35145), (825, 34719), (1065, 26895), (1467, 19525), (1775, 16137), (1793, 15975), (2343, 12225), (2445, 11715), (2475, 11573), (3195, 8965), (3905, 7335), (4075, 7029), (5325, 5379)]