20124225

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 40390272

約数和(自身を除く): 20266047

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 47, 55, 75, 99, 141, 165, 173, 225, 235, 275, 423, 495, 517, 519, 705, 825, 865, 1175, 1551, 1557, 1903, 2115, 2475, 2585, 2595, 3525, 4325, 4653, 5709, 7755, 7785, 8131, 9515, 10575, 12925, 12975, 17127, 23265, 24393, 28545, 38775, 38925, 40655, 47575, 73179, 85635, 89441, 116325, 121965, 142725, 203275, 268323, 365895, 428175, 447205, 609825, 804969, 1341615, 1829475, 2236025, 4024845, 6708075, 20124225]

約数ペア:

[(1, 20124225), (3, 6708075), (5, 4024845), (9, 2236025), (11, 1829475), (15, 1341615), (25, 804969), (33, 609825), (45, 447205), (47, 428175), (55, 365895), (75, 268323), (99, 203275), (141, 142725), (165, 121965), (173, 116325), (225, 89441), (235, 85635), (275, 73179), (423, 47575), (495, 40655), (517, 38925), (519, 38775), (705, 28545), (825, 24393), (865, 23265), (1175, 17127), (1551, 12975), (1557, 12925), (1903, 10575), (2115, 9515), (2475, 8131), (2585, 7785), (2595, 7755), (3525, 5709), (4325, 4653)]