1801994404

素因数分解:

$2^2\times 7^3\times {\mathrm{661}}^1\times {\mathrm{1987}}^1$

素因数の和:2673

約数の個数: 48

約数和(自身を含む): 3684956800

約数和(自身を除く): 1882962396

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 661, 686, 1322, 1372, 1987, 2644, 3974, 4627, 7948, 9254, 13909, 18508, 27818, 32389, 55636, 64778, 97363, 129556, 194726, 226723, 389452, 453446, 681541, 906892, 1313407, 1363082, 2626814, 2726164, 5253628, 9193849, 18387698, 36775396, 64356943, 128713886, 257427772, 450498601, 900997202, 1801994404]

約数ペア:

[(1, 1801994404), (2, 900997202), (4, 450498601), (7, 257427772), (14, 128713886), (28, 64356943), (49, 36775396), (98, 18387698), (196, 9193849), (343, 5253628), (661, 2726164), (686, 2626814), (1322, 1363082), (1372, 1313407), (1987, 906892), (2644, 681541), (3974, 453446), (4627, 389452), (7948, 226723), (9254, 194726), (13909, 129556), (18508, 97363), (27818, 64778), (32389, 55636)]