19502080

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1$

素因数の和:331

約数の個数: 88

約数和(自身を含む): 50552712

約数和(自身を除く): 31050632

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 293, 320, 416, 512, 520, 586, 640, 832, 1024, 1040, 1172, 1280, 1465, 1664, 2080, 2344, 2560, 2930, 3328, 3809, 4160, 4688, 5120, 5860, 6656, 7618, 8320, 9376, 11720, 13312, 15236, 16640, 18752, 19045, 23440, 30472, 33280, 37504, 38090, 46880, 60944, 66560, 75008, 76180, 93760, 121888, 150016, 152360, 187520, 243776, 300032, 304720, 375040, 487552, 609440, 750080, 975104, 1218880, 1500160, 1950208, 2437760, 3900416, 4875520, 9751040, 19502080]

約数ペア:

[(1, 19502080), (2, 9751040), (4, 4875520), (5, 3900416), (8, 2437760), (10, 1950208), (13, 1500160), (16, 1218880), (20, 975104), (26, 750080), (32, 609440), (40, 487552), (52, 375040), (64, 304720), (65, 300032), (80, 243776), (104, 187520), (128, 152360), (130, 150016), (160, 121888), (208, 93760), (256, 76180), (260, 75008), (293, 66560), (320, 60944), (416, 46880), (512, 38090), (520, 37504), (586, 33280), (640, 30472), (832, 23440), (1024, 19045), (1040, 18752), (1172, 16640), (1280, 15236), (1465, 13312), (1664, 11720), (2080, 9376), (2344, 8320), (2560, 7618), (2930, 6656), (3328, 5860), (3809, 5120), (4160, 4688)]