331512380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{1361}}^1$

素因数の和:2030

約数の個数: 48

約数和(自身を含む): 734499360

約数和(自身を除く): 402986980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 641, 1282, 1361, 2564, 2722, 3205, 5444, 6410, 6805, 12179, 12820, 13610, 24358, 25859, 27220, 48716, 51718, 60895, 103436, 121790, 129295, 243580, 258590, 517180, 872401, 1744802, 3489604, 4362005, 8724010, 16575619, 17448020, 33151238, 66302476, 82878095, 165756190, 331512380]

約数ペア:

[(1, 331512380), (2, 165756190), (4, 82878095), (5, 66302476), (10, 33151238), (19, 17448020), (20, 16575619), (38, 8724010), (76, 4362005), (95, 3489604), (190, 1744802), (380, 872401), (641, 517180), (1282, 258590), (1361, 243580), (2564, 129295), (2722, 121790), (3205, 103436), (5444, 60895), (6410, 51718), (6805, 48716), (12179, 27220), (12820, 25859), (13610, 24358)]