1640129392

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{216719}}^1$

素因数の和:216781

約数の個数: 40

約数和(自身を含む): 3547272960

約数和(自身を除く): 1907143568

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 172, 176, 344, 473, 688, 946, 1892, 3784, 7568, 216719, 433438, 866876, 1733752, 2383909, 3467504, 4767818, 9318917, 9535636, 18637834, 19071272, 37275668, 38142544, 74551336, 102508087, 149102672, 205016174, 410032348, 820064696, 1640129392]

約数ペア:

[(1, 1640129392), (2, 820064696), (4, 410032348), (8, 205016174), (11, 149102672), (16, 102508087), (22, 74551336), (43, 38142544), (44, 37275668), (86, 19071272), (88, 18637834), (172, 9535636), (176, 9318917), (344, 4767818), (473, 3467504), (688, 2383909), (946, 1733752), (1892, 866876), (3784, 433438), (7568, 216719)]