640497044

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{14869}}^1$

素因数の和:14984

約数の個数: 36

約数和(自身を含む): 1245957300

約数和(自身を除く): 605460256

約数列:

[1, 2, 4, 11, 22, 44, 89, 121, 178, 242, 356, 484, 979, 1958, 3916, 10769, 14869, 21538, 29738, 43076, 59476, 163559, 327118, 654236, 1323341, 1799149, 2646682, 3598298, 5293364, 7196596, 14556751, 29113502, 58227004, 160124261, 320248522, 640497044]

約数ペア:

[(1, 640497044), (2, 320248522), (4, 160124261), (11, 58227004), (22, 29113502), (44, 14556751), (89, 7196596), (121, 5293364), (178, 3598298), (242, 2646682), (356, 1799149), (484, 1323341), (979, 654236), (1958, 327118), (3916, 163559), (10769, 59476), (14869, 43076), (21538, 29738)]