12820480

素因数分解:

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

素因数の和:344

約数の個数: 56

約数和(自身を含む): 30865572

約数和(自身を除く): 18045092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 313, 320, 512, 626, 640, 1024, 1252, 1280, 1565, 2048, 2504, 2560, 3130, 4096, 5008, 5120, 6260, 8192, 10016, 10240, 12520, 20032, 20480, 25040, 40064, 40960, 50080, 80128, 100160, 160256, 200320, 320512, 400640, 641024, 801280, 1282048, 1602560, 2564096, 3205120, 6410240, 12820480]

約数ペア:

[(1, 12820480), (2, 6410240), (4, 3205120), (5, 2564096), (8, 1602560), (10, 1282048), (16, 801280), (20, 641024), (32, 400640), (40, 320512), (64, 200320), (80, 160256), (128, 100160), (160, 80128), (256, 50080), (313, 40960), (320, 40064), (512, 25040), (626, 20480), (640, 20032), (1024, 12520), (1252, 10240), (1280, 10016), (1565, 8192), (2048, 6260), (2504, 5120), (2560, 5008), (3130, 4096)]