8400980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2609}}^1$

素因数の和:2648

約数の個数: 48

約数和(自身を含む): 21047040

約数和(自身を除く): 12646060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 2609, 3220, 5218, 10436, 13045, 18263, 26090, 36526, 52180, 60007, 73052, 91315, 120014, 182630, 240028, 300035, 365260, 420049, 600070, 840098, 1200140, 1680196, 2100245, 4200490, 8400980]

約数ペア:

[(1, 8400980), (2, 4200490), (4, 2100245), (5, 1680196), (7, 1200140), (10, 840098), (14, 600070), (20, 420049), (23, 365260), (28, 300035), (35, 240028), (46, 182630), (70, 120014), (92, 91315), (115, 73052), (140, 60007), (161, 52180), (230, 36526), (322, 26090), (460, 18263), (644, 13045), (805, 10436), (1610, 5218), (2609, 3220)]