12520000

素因数分解:

$2^6\times 5^4\times {\mathrm{313}}^1$

素因数の和:345

約数の個数: 70

約数和(自身を含む): 31144718

約数和(自身を除く): 18624718

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 313, 320, 400, 500, 625, 626, 800, 1000, 1250, 1252, 1565, 1600, 2000, 2500, 2504, 3130, 4000, 5000, 5008, 6260, 7825, 8000, 10000, 10016, 12520, 15650, 20000, 20032, 25040, 31300, 39125, 40000, 50080, 62600, 78250, 100160, 125200, 156500, 195625, 250400, 313000, 391250, 500800, 626000, 782500, 1252000, 1565000, 2504000, 3130000, 6260000, 12520000]

約数ペア:

[(1, 12520000), (2, 6260000), (4, 3130000), (5, 2504000), (8, 1565000), (10, 1252000), (16, 782500), (20, 626000), (25, 500800), (32, 391250), (40, 313000), (50, 250400), (64, 195625), (80, 156500), (100, 125200), (125, 100160), (160, 78250), (200, 62600), (250, 50080), (313, 40000), (320, 39125), (400, 31300), (500, 25040), (625, 20032), (626, 20000), (800, 15650), (1000, 12520), (1250, 10016), (1252, 10000), (1565, 8000), (1600, 7825), (2000, 6260), (2500, 5008), (2504, 5000), (3130, 4000)]