508812800

素因数分解:

$2^9\times 5^2\times {\mathrm{127}}^1\times {\mathrm{313}}^1$

素因数の和:468

約数の個数: 120

約数和(自身を含む): 1274608896

約数和(自身を除く): 765796096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 127, 128, 160, 200, 254, 256, 313, 320, 400, 508, 512, 626, 635, 640, 800, 1016, 1252, 1270, 1280, 1565, 1600, 2032, 2504, 2540, 2560, 3130, 3175, 3200, 4064, 5008, 5080, 6260, 6350, 6400, 7825, 8128, 10016, 10160, 12520, 12700, 12800, 15650, 16256, 20032, 20320, 25040, 25400, 31300, 32512, 39751, 40064, 40640, 50080, 50800, 62600, 65024, 79502, 80128, 81280, 100160, 101600, 125200, 159004, 160256, 162560, 198755, 200320, 203200, 250400, 318008, 325120, 397510, 400640, 406400, 500800, 636016, 795020, 801280, 812800, 993775, 1001600, 1272032, 1590040, 1625600, 1987550, 2003200, 2544064, 3180080, 3975100, 4006400, 5088128, 6360160, 7950200, 10176256, 12720320, 15900400, 20352512, 25440640, 31800800, 50881280, 63601600, 101762560, 127203200, 254406400, 508812800]

約数ペア:

[(1, 508812800), (2, 254406400), (4, 127203200), (5, 101762560), (8, 63601600), (10, 50881280), (16, 31800800), (20, 25440640), (25, 20352512), (32, 15900400), (40, 12720320), (50, 10176256), (64, 7950200), (80, 6360160), (100, 5088128), (127, 4006400), (128, 3975100), (160, 3180080), (200, 2544064), (254, 2003200), (256, 1987550), (313, 1625600), (320, 1590040), (400, 1272032), (508, 1001600), (512, 993775), (626, 812800), (635, 801280), (640, 795020), (800, 636016), (1016, 500800), (1252, 406400), (1270, 400640), (1280, 397510), (1565, 325120), (1600, 318008), (2032, 250400), (2504, 203200), (2540, 200320), (2560, 198755), (3130, 162560), (3175, 160256), (3200, 159004), (4064, 125200), (5008, 101600), (5080, 100160), (6260, 81280), (6350, 80128), (6400, 79502), (7825, 65024), (8128, 62600), (10016, 50800), (10160, 50080), (12520, 40640), (12700, 40064), (12800, 39751), (15650, 32512), (16256, 31300), (20032, 25400), (20320, 25040)]