31300000

素因数分解:

$2^5\times 5^5\times {\mathrm{313}}^1$

素因数の和:348

約数の個数: 72

約数和(自身を含む): 77268492

約数和(自身を除く): 45968492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 313, 400, 500, 625, 626, 800, 1000, 1250, 1252, 1565, 2000, 2500, 2504, 3125, 3130, 4000, 5000, 5008, 6250, 6260, 7825, 10000, 10016, 12500, 12520, 15650, 20000, 25000, 25040, 31300, 39125, 50000, 50080, 62600, 78250, 100000, 125200, 156500, 195625, 250400, 313000, 391250, 626000, 782500, 978125, 1252000, 1565000, 1956250, 3130000, 3912500, 6260000, 7825000, 15650000, 31300000]

約数ペア:

[(1, 31300000), (2, 15650000), (4, 7825000), (5, 6260000), (8, 3912500), (10, 3130000), (16, 1956250), (20, 1565000), (25, 1252000), (32, 978125), (40, 782500), (50, 626000), (80, 391250), (100, 313000), (125, 250400), (160, 195625), (200, 156500), (250, 125200), (313, 100000), (400, 78250), (500, 62600), (625, 50080), (626, 50000), (800, 39125), (1000, 31300), (1250, 25040), (1252, 25000), (1565, 20000), (2000, 15650), (2500, 12520), (2504, 12500), (3125, 10016), (3130, 10000), (4000, 7825), (5000, 6260), (5008, 6250)]