19520325

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{239}}^1$

素因数の和:280

約数の個数: 72

約数和(自身を含む): 39580800

約数和(自身を除く): 20060475

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 121, 135, 165, 225, 239, 275, 297, 363, 495, 605, 675, 717, 825, 1089, 1195, 1485, 1815, 2151, 2475, 2629, 3025, 3267, 3585, 5445, 5975, 6453, 7425, 7887, 9075, 10755, 13145, 16335, 17925, 23661, 27225, 28919, 32265, 39435, 53775, 65725, 70983, 81675, 86757, 118305, 144595, 161325, 197175, 260271, 354915, 433785, 591525, 722975, 780813, 1301355, 1774575, 2168925, 3904065, 6506775, 19520325]

約数ペア:

[(1, 19520325), (3, 6506775), (5, 3904065), (9, 2168925), (11, 1774575), (15, 1301355), (25, 780813), (27, 722975), (33, 591525), (45, 433785), (55, 354915), (75, 260271), (99, 197175), (121, 161325), (135, 144595), (165, 118305), (225, 86757), (239, 81675), (275, 70983), (297, 65725), (363, 53775), (495, 39435), (605, 32265), (675, 28919), (717, 27225), (825, 23661), (1089, 17925), (1195, 16335), (1485, 13145), (1815, 10755), (2151, 9075), (2475, 7887), (2629, 7425), (3025, 6453), (3267, 5975), (3585, 5445)]