30989840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{55339}}^1$

素因数の和:55359

約数の個数: 40

約数和(自身を含む): 82345920

約数和(自身を除く): 51356080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 55339, 110678, 221356, 276695, 387373, 442712, 553390, 774746, 885424, 1106780, 1549492, 1936865, 2213560, 3098984, 3873730, 4427120, 6197968, 7747460, 15494920, 30989840]

約数ペア:

[(1, 30989840), (2, 15494920), (4, 7747460), (5, 6197968), (7, 4427120), (8, 3873730), (10, 3098984), (14, 2213560), (16, 1936865), (20, 1549492), (28, 1106780), (35, 885424), (40, 774746), (56, 553390), (70, 442712), (80, 387373), (112, 276695), (140, 221356), (280, 110678), (560, 55339)]