28295680

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{1579}}^1$

素因数の和:1609

約数の個数: 80

約数和(自身を含む): 77584320

約数和(自身を除く): 49288640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1579, 1792, 2240, 2560, 3158, 3584, 4480, 6316, 7895, 8960, 11053, 12632, 15790, 17920, 22106, 25264, 31580, 44212, 50528, 55265, 63160, 88424, 101056, 110530, 126320, 176848, 202112, 221060, 252640, 353696, 404224, 442120, 505280, 707392, 808448, 884240, 1010560, 1414784, 1768480, 2021120, 2829568, 3536960, 4042240, 5659136, 7073920, 14147840, 28295680]

約数ペア:

[(1, 28295680), (2, 14147840), (4, 7073920), (5, 5659136), (7, 4042240), (8, 3536960), (10, 2829568), (14, 2021120), (16, 1768480), (20, 1414784), (28, 1010560), (32, 884240), (35, 808448), (40, 707392), (56, 505280), (64, 442120), (70, 404224), (80, 353696), (112, 252640), (128, 221060), (140, 202112), (160, 176848), (224, 126320), (256, 110530), (280, 101056), (320, 88424), (448, 63160), (512, 55265), (560, 50528), (640, 44212), (896, 31580), (1120, 25264), (1280, 22106), (1579, 17920), (1792, 15790), (2240, 12632), (2560, 11053), (3158, 8960), (3584, 7895), (4480, 6316)]