31482500

素因数分解:

$2^2\times 5^4\times 7^2\times {\mathrm{257}}^1$

素因数の和:295

約数の個数: 90

約数和(自身を含む): 80397702

約数和(自身を除く): 48915202

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 196, 245, 250, 257, 350, 490, 500, 514, 625, 700, 875, 980, 1028, 1225, 1250, 1285, 1750, 1799, 2450, 2500, 2570, 3500, 3598, 4375, 4900, 5140, 6125, 6425, 7196, 8750, 8995, 12250, 12593, 12850, 17500, 17990, 24500, 25186, 25700, 30625, 32125, 35980, 44975, 50372, 61250, 62965, 64250, 89950, 122500, 125930, 128500, 160625, 179900, 224875, 251860, 314825, 321250, 449750, 629650, 642500, 899500, 1124375, 1259300, 1574125, 2248750, 3148250, 4497500, 6296500, 7870625, 15741250, 31482500]

約数ペア:

[(1, 31482500), (2, 15741250), (4, 7870625), (5, 6296500), (7, 4497500), (10, 3148250), (14, 2248750), (20, 1574125), (25, 1259300), (28, 1124375), (35, 899500), (49, 642500), (50, 629650), (70, 449750), (98, 321250), (100, 314825), (125, 251860), (140, 224875), (175, 179900), (196, 160625), (245, 128500), (250, 125930), (257, 122500), (350, 89950), (490, 64250), (500, 62965), (514, 61250), (625, 50372), (700, 44975), (875, 35980), (980, 32125), (1028, 30625), (1225, 25700), (1250, 25186), (1285, 24500), (1750, 17990), (1799, 17500), (2450, 12850), (2500, 12593), (2570, 12250), (3500, 8995), (3598, 8750), (4375, 7196), (4900, 6425), (5140, 6125)]