290841520

素因数分解:

$2^4\times 5^1\times {\mathrm{347}}^1\times {\mathrm{10477}}^1$

素因数の和:10837

約数の個数: 40

約数和(自身を含む): 678219984

約数和(自身を除く): 387378464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 347, 694, 1388, 1735, 2776, 3470, 5552, 6940, 10477, 13880, 20954, 27760, 41908, 52385, 83816, 104770, 167632, 209540, 419080, 838160, 3635519, 7271038, 14542076, 18177595, 29084152, 36355190, 58168304, 72710380, 145420760, 290841520]

約数ペア:

[(1, 290841520), (2, 145420760), (4, 72710380), (5, 58168304), (8, 36355190), (10, 29084152), (16, 18177595), (20, 14542076), (40, 7271038), (80, 3635519), (347, 838160), (694, 419080), (1388, 209540), (1735, 167632), (2776, 104770), (3470, 83816), (5552, 52385), (6940, 41908), (10477, 27760), (13880, 20954)]