681331888

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{829}}^1\times {\mathrm{1657}}^1$

素因数の和:2525

約数の個数: 40

約数和(自身を含む): 1365130880

約数和(自身を除く): 683798992

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 829, 1657, 1658, 3314, 3316, 6628, 6632, 13256, 13264, 25699, 26512, 51367, 51398, 102734, 102796, 205468, 205592, 410936, 411184, 821872, 1373653, 2747306, 5494612, 10989224, 21978448, 42583243, 85166486, 170332972, 340665944, 681331888]

約数ペア:

[(1, 681331888), (2, 340665944), (4, 170332972), (8, 85166486), (16, 42583243), (31, 21978448), (62, 10989224), (124, 5494612), (248, 2747306), (496, 1373653), (829, 821872), (1657, 411184), (1658, 410936), (3314, 205592), (3316, 205468), (6628, 102796), (6632, 102734), (13256, 51398), (13264, 51367), (25699, 26512)]