27990320

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3607}}^1$

素因数の和:3717

約数の個数: 40

約数和(自身を含む): 65766624

約数和(自身を除く): 37776304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3607, 3880, 7214, 7760, 14428, 18035, 28856, 36070, 57712, 72140, 144280, 288560, 349879, 699758, 1399516, 1749395, 2799032, 3498790, 5598064, 6997580, 13995160, 27990320]

約数ペア:

[(1, 27990320), (2, 13995160), (4, 6997580), (5, 5598064), (8, 3498790), (10, 2799032), (16, 1749395), (20, 1399516), (40, 699758), (80, 349879), (97, 288560), (194, 144280), (388, 72140), (485, 57712), (776, 36070), (970, 28856), (1552, 18035), (1940, 14428), (3607, 7760), (3880, 7214)]