20492488

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4349}}^1$

素因数の和:4405

約数の個数: 32

約数和(自身を含む): 41760000

約数和(自身を除く): 21267512

約数列:

[1, 2, 4, 8, 19, 31, 38, 62, 76, 124, 152, 248, 589, 1178, 2356, 4349, 4712, 8698, 17396, 34792, 82631, 134819, 165262, 269638, 330524, 539276, 661048, 1078552, 2561561, 5123122, 10246244, 20492488]

約数ペア:

[(1, 20492488), (2, 10246244), (4, 5123122), (8, 2561561), (19, 1078552), (31, 661048), (38, 539276), (62, 330524), (76, 269638), (124, 165262), (152, 134819), (248, 82631), (589, 34792), (1178, 17396), (2356, 8698), (4349, 4712)]