1644640

素因数分解:

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

素因数の和:575

約数の個数: 48

約数和(自身を含む): 4097520

約数和(自身を除く): 2452880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 541, 608, 760, 1082, 1520, 2164, 2705, 3040, 4328, 5410, 8656, 10279, 10820, 17312, 20558, 21640, 41116, 43280, 51395, 82232, 86560, 102790, 164464, 205580, 328928, 411160, 822320, 1644640]

約数ペア:

[(1, 1644640), (2, 822320), (4, 411160), (5, 328928), (8, 205580), (10, 164464), (16, 102790), (19, 86560), (20, 82232), (32, 51395), (38, 43280), (40, 41116), (76, 21640), (80, 20558), (95, 17312), (152, 10820), (160, 10279), (190, 8656), (304, 5410), (380, 4328), (541, 3040), (608, 2705), (760, 2164), (1082, 1520)]