389400900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{185429}}^1$

素因数の和:185453

約数の個数: 72

約数和(自身を含む): 1287625920

約数和(自身を除く): 898225020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 185429, 370858, 556287, 741716, 927145, 1112574, 1298003, 1854290, 2225148, 2596006, 2781435, 3708580, 3894009, 4635725, 5192012, 5562870, 6490015, 7788018, 9271450, 11125740, 12980030, 13907175, 15576036, 18542900, 19470045, 25960060, 27814350, 32450075, 38940090, 55628700, 64900150, 77880180, 97350225, 129800300, 194700450, 389400900]

約数ペア:

[(1, 389400900), (2, 194700450), (3, 129800300), (4, 97350225), (5, 77880180), (6, 64900150), (7, 55628700), (10, 38940090), (12, 32450075), (14, 27814350), (15, 25960060), (20, 19470045), (21, 18542900), (25, 15576036), (28, 13907175), (30, 12980030), (35, 11125740), (42, 9271450), (50, 7788018), (60, 6490015), (70, 5562870), (75, 5192012), (84, 4635725), (100, 3894009), (105, 3708580), (140, 2781435), (150, 2596006), (175, 2225148), (210, 1854290), (300, 1298003), (350, 1112574), (420, 927145), (525, 741716), (700, 556287), (1050, 370858), (2100, 185429)]