64102400

素因数分解:

$2^{13}\times 5^2\times {\mathrm{313}}^1$

素因数の和:349

約数の個数: 84

約数和(自身を含む): 159472122

約数和(自身を除く): 95369722

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, 2048, 2504, 2560, 3130, 3200, 4096, 5008, 5120, 6260, 6400, 7825, 8192, 10016, 10240, 12520, 12800, 15650, 20032, 20480, 25040, 25600, 31300, 40064, 40960, 50080, 51200, 62600, 80128, 100160, 102400, 125200, 160256, 200320, 204800, 250400, 320512, 400640, 500800, 641024, 801280, 1001600, 1282048, 1602560, 2003200, 2564096, 3205120, 4006400, 6410240, 8012800, 12820480, 16025600, 32051200, 64102400]

約数ペア:

[(1, 64102400), (2, 32051200), (4, 16025600), (5, 12820480), (8, 8012800), (10, 6410240), (16, 4006400), (20, 3205120), (25, 2564096), (32, 2003200), (40, 1602560), (50, 1282048), (64, 1001600), (80, 801280), (100, 641024), (128, 500800), (160, 400640), (200, 320512), (256, 250400), (313, 204800), (320, 200320), (400, 160256), (512, 125200), (626, 102400), (640, 100160), (800, 80128), (1024, 62600), (1252, 51200), (1280, 50080), (1565, 40960), (1600, 40064), (2048, 31300), (2504, 25600), (2560, 25040), (3130, 20480), (3200, 20032), (4096, 15650), (5008, 12800), (5120, 12520), (6260, 10240), (6400, 10016), (7825, 8192)]