81838880

素因数分解:

$2^5\times 5^1\times {\mathrm{617}}^1\times {\mathrm{829}}^1$

素因数の和:1461

約数の個数: 48

約数和(自身を含む): 193891320

約数和(自身を除く): 112052440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 617, 829, 1234, 1658, 2468, 3085, 3316, 4145, 4936, 6170, 6632, 8290, 9872, 12340, 13264, 16580, 19744, 24680, 26528, 33160, 49360, 66320, 98720, 132640, 511493, 1022986, 2045972, 2557465, 4091944, 5114930, 8183888, 10229860, 16367776, 20459720, 40919440, 81838880]

約数ペア:

[(1, 81838880), (2, 40919440), (4, 20459720), (5, 16367776), (8, 10229860), (10, 8183888), (16, 5114930), (20, 4091944), (32, 2557465), (40, 2045972), (80, 1022986), (160, 511493), (617, 132640), (829, 98720), (1234, 66320), (1658, 49360), (2468, 33160), (3085, 26528), (3316, 24680), (4145, 19744), (4936, 16580), (6170, 13264), (6632, 12340), (8290, 9872)]