251140328

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{8387}}^1$

素因数の和:8609

約数の個数: 32

約数和(自身を含む): 498247200

約数和(自身を除く): 247106872

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 197, 394, 788, 1576, 3743, 7486, 8387, 14972, 16774, 29944, 33548, 67096, 159353, 318706, 637412, 1274824, 1652239, 3304478, 6608956, 13217912, 31392541, 62785082, 125570164, 251140328]

約数ペア:

[(1, 251140328), (2, 125570164), (4, 62785082), (8, 31392541), (19, 13217912), (38, 6608956), (76, 3304478), (152, 1652239), (197, 1274824), (394, 637412), (788, 318706), (1576, 159353), (3743, 67096), (7486, 33548), (8387, 29944), (14972, 16774)]