19785280

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3637}}^1$

素因数の和:3671

約数の個数: 56

約数和(自身を含む): 49898808

約数和(自身を除く): 30113528

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 3637, 5440, 7274, 14548, 18185, 29096, 36370, 58192, 61829, 72740, 116384, 123658, 145480, 232768, 247316, 290960, 309145, 494632, 581920, 618290, 989264, 1163840, 1236580, 1978528, 2473160, 3957056, 4946320, 9892640, 19785280]

約数ペア:

[(1, 19785280), (2, 9892640), (4, 4946320), (5, 3957056), (8, 2473160), (10, 1978528), (16, 1236580), (17, 1163840), (20, 989264), (32, 618290), (34, 581920), (40, 494632), (64, 309145), (68, 290960), (80, 247316), (85, 232768), (136, 145480), (160, 123658), (170, 116384), (272, 72740), (320, 61829), (340, 58192), (544, 36370), (680, 29096), (1088, 18185), (1360, 14548), (2720, 7274), (3637, 5440)]