81430895

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 125905248

約数和(自身を除く): 44474353

約数列:

[1, 5, 7, 13, 35, 37, 49, 65, 91, 185, 245, 259, 455, 481, 637, 691, 1295, 1813, 2405, 3185, 3367, 3455, 4837, 8983, 9065, 16835, 23569, 24185, 25567, 33859, 44915, 62881, 117845, 127835, 169295, 178969, 314405, 332371, 440167, 894845, 1252783, 1661855, 2200835, 2326597, 6263915, 11632985, 16286179, 81430895]

約数ペア:

[(1, 81430895), (5, 16286179), (7, 11632985), (13, 6263915), (35, 2326597), (37, 2200835), (49, 1661855), (65, 1252783), (91, 894845), (185, 440167), (245, 332371), (259, 314405), (455, 178969), (481, 169295), (637, 127835), (691, 117845), (1295, 62881), (1813, 44915), (2405, 33859), (3185, 25567), (3367, 24185), (3455, 23569), (4837, 16835), (8983, 9065)]