13157120

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{541}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 33235440

約数和(自身を除く): 20078320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 541, 608, 640, 760, 1082, 1216, 1280, 1520, 2164, 2432, 2705, 3040, 4328, 4864, 5410, 6080, 8656, 10279, 10820, 12160, 17312, 20558, 21640, 24320, 34624, 41116, 43280, 51395, 69248, 82232, 86560, 102790, 138496, 164464, 173120, 205580, 328928, 346240, 411160, 657856, 692480, 822320, 1315712, 1644640, 2631424, 3289280, 6578560, 13157120]

約数ペア:

[(1, 13157120), (2, 6578560), (4, 3289280), (5, 2631424), (8, 1644640), (10, 1315712), (16, 822320), (19, 692480), (20, 657856), (32, 411160), (38, 346240), (40, 328928), (64, 205580), (76, 173120), (80, 164464), (95, 138496), (128, 102790), (152, 86560), (160, 82232), (190, 69248), (256, 51395), (304, 43280), (320, 41116), (380, 34624), (541, 24320), (608, 21640), (640, 20558), (760, 17312), (1082, 12160), (1216, 10820), (1280, 10279), (1520, 8656), (2164, 6080), (2432, 5410), (2705, 4864), (3040, 4328)]