168782020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{463}}^1\times {\mathrm{1657}}^1$

素因数の和:2140

約数の個数: 48

約数和(自身を含む): 387733248

約数和(自身を除く): 218951228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 463, 926, 1657, 1852, 2315, 3314, 4630, 5093, 6628, 8285, 9260, 10186, 16570, 18227, 20372, 25465, 33140, 36454, 50930, 72908, 91135, 101860, 182270, 364540, 767191, 1534382, 3068764, 3835955, 7671910, 8439101, 15343820, 16878202, 33756404, 42195505, 84391010, 168782020]

約数ペア:

[(1, 168782020), (2, 84391010), (4, 42195505), (5, 33756404), (10, 16878202), (11, 15343820), (20, 8439101), (22, 7671910), (44, 3835955), (55, 3068764), (110, 1534382), (220, 767191), (463, 364540), (926, 182270), (1657, 101860), (1852, 91135), (2315, 72908), (3314, 50930), (4630, 36454), (5093, 33140), (6628, 25465), (8285, 20372), (9260, 18227), (10186, 16570)]