721297872

素因数分解:

$2^4\times 3^5\times {\mathrm{185519}}^1$

素因数の和:185542

約数の個数: 60

約数和(自身を含む): 2093407680

約数和(自身を除く): 1372109808

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 216, 243, 324, 432, 486, 648, 972, 1296, 1944, 3888, 185519, 371038, 556557, 742076, 1113114, 1484152, 1669671, 2226228, 2968304, 3339342, 4452456, 5009013, 6678684, 8904912, 10018026, 13357368, 15027039, 20036052, 26714736, 30054078, 40072104, 45081117, 60108156, 80144208, 90162234, 120216312, 180324468, 240432624, 360648936, 721297872]

約数ペア:

[(1, 721297872), (2, 360648936), (3, 240432624), (4, 180324468), (6, 120216312), (8, 90162234), (9, 80144208), (12, 60108156), (16, 45081117), (18, 40072104), (24, 30054078), (27, 26714736), (36, 20036052), (48, 15027039), (54, 13357368), (72, 10018026), (81, 8904912), (108, 6678684), (144, 5009013), (162, 4452456), (216, 3339342), (243, 2968304), (324, 2226228), (432, 1669671), (486, 1484152), (648, 1113114), (972, 742076), (1296, 556557), (1944, 371038), (3888, 185519)]