28771996

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{389}}^1$

素因数の和:486

約数の個数: 36

約数和(自身を含む): 56445480

約数和(自身を除く): 27673484

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 389, 451, 778, 902, 1556, 1681, 1804, 3362, 4279, 6724, 8558, 15949, 17116, 18491, 31898, 36982, 63796, 73964, 175439, 350878, 653909, 701756, 1307818, 2615636, 7192999, 14385998, 28771996]

約数ペア:

[(1, 28771996), (2, 14385998), (4, 7192999), (11, 2615636), (22, 1307818), (41, 701756), (44, 653909), (82, 350878), (164, 175439), (389, 73964), (451, 63796), (778, 36982), (902, 31898), (1556, 18491), (1681, 17116), (1804, 15949), (3362, 8558), (4279, 6724)]