204012800

素因数分解:

$2^8\times 5^2\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:404

約数の個数: 108

約数和(自身を含む): 510967296

約数和(自身を除く): 306954496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 127, 128, 160, 200, 251, 254, 256, 320, 400, 502, 508, 635, 640, 800, 1004, 1016, 1255, 1270, 1280, 1600, 2008, 2032, 2510, 2540, 3175, 3200, 4016, 4064, 5020, 5080, 6275, 6350, 6400, 8032, 8128, 10040, 10160, 12550, 12700, 16064, 16256, 20080, 20320, 25100, 25400, 31877, 32128, 32512, 40160, 40640, 50200, 50800, 63754, 64256, 80320, 81280, 100400, 101600, 127508, 159385, 160640, 162560, 200800, 203200, 255016, 318770, 321280, 401600, 406400, 510032, 637540, 796925, 803200, 812800, 1020064, 1275080, 1593850, 1606400, 2040128, 2550160, 3187700, 4080256, 5100320, 6375400, 8160512, 10200640, 12750800, 20401280, 25501600, 40802560, 51003200, 102006400, 204012800]

約数ペア:

[(1, 204012800), (2, 102006400), (4, 51003200), (5, 40802560), (8, 25501600), (10, 20401280), (16, 12750800), (20, 10200640), (25, 8160512), (32, 6375400), (40, 5100320), (50, 4080256), (64, 3187700), (80, 2550160), (100, 2040128), (127, 1606400), (128, 1593850), (160, 1275080), (200, 1020064), (251, 812800), (254, 803200), (256, 796925), (320, 637540), (400, 510032), (502, 406400), (508, 401600), (635, 321280), (640, 318770), (800, 255016), (1004, 203200), (1016, 200800), (1255, 162560), (1270, 160640), (1280, 159385), (1600, 127508), (2008, 101600), (2032, 100400), (2510, 81280), (2540, 80320), (3175, 64256), (3200, 63754), (4016, 50800), (4064, 50200), (5020, 40640), (5080, 40160), (6275, 32512), (6350, 32128), (6400, 31877), (8032, 25400), (8128, 25100), (10040, 20320), (10160, 20080), (12550, 16256), (12700, 16064)]