8012800

素因数分解:

$2^{10}\times 5^2\times {\mathrm{313}}^1$

素因数の和:343

約数の個数: 66

約数和(自身を含む): 19925498

約数和(自身を除く): 11912698

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 313, 320, 400, 512, 626, 640, 800, 1024, 1252, 1280, 1565, 1600, 2504, 2560, 3130, 3200, 5008, 5120, 6260, 6400, 7825, 10016, 12520, 12800, 15650, 20032, 25040, 25600, 31300, 40064, 50080, 62600, 80128, 100160, 125200, 160256, 200320, 250400, 320512, 400640, 500800, 801280, 1001600, 1602560, 2003200, 4006400, 8012800]

約数ペア:

[(1, 8012800), (2, 4006400), (4, 2003200), (5, 1602560), (8, 1001600), (10, 801280), (16, 500800), (20, 400640), (25, 320512), (32, 250400), (40, 200320), (50, 160256), (64, 125200), (80, 100160), (100, 80128), (128, 62600), (160, 50080), (200, 40064), (256, 31300), (313, 25600), (320, 25040), (400, 20032), (512, 15650), (626, 12800), (640, 12520), (800, 10016), (1024, 7825), (1252, 6400), (1280, 6260), (1565, 5120), (1600, 5008), (2504, 3200), (2560, 3130)]