2780240

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1511}}^1$

素因数の和:1547

約数の個数: 40

約数和(自身を含む): 6749568

約数和(自身を除く): 3969328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1511, 1840, 3022, 6044, 7555, 12088, 15110, 24176, 30220, 34753, 60440, 69506, 120880, 139012, 173765, 278024, 347530, 556048, 695060, 1390120, 2780240]

約数ペア:

[(1, 2780240), (2, 1390120), (4, 695060), (5, 556048), (8, 347530), (10, 278024), (16, 173765), (20, 139012), (23, 120880), (40, 69506), (46, 60440), (80, 34753), (92, 30220), (115, 24176), (184, 15110), (230, 12088), (368, 7555), (460, 6044), (920, 3022), (1511, 1840)]