128440400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29191}}^1$

素因数の和:29220

約数の個数: 60

約数和(自身を含む): 336642144

約数和(自身を除く): 208201744

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 176, 200, 220, 275, 400, 440, 550, 880, 1100, 2200, 4400, 29191, 58382, 116764, 145955, 233528, 291910, 321101, 467056, 583820, 642202, 729775, 1167640, 1284404, 1459550, 1605505, 2335280, 2568808, 2919100, 3211010, 5137616, 5838200, 6422020, 8027525, 11676400, 12844040, 16055050, 25688080, 32110100, 64220200, 128440400]

約数ペア:

[(1, 128440400), (2, 64220200), (4, 32110100), (5, 25688080), (8, 16055050), (10, 12844040), (11, 11676400), (16, 8027525), (20, 6422020), (22, 5838200), (25, 5137616), (40, 3211010), (44, 2919100), (50, 2568808), (55, 2335280), (80, 1605505), (88, 1459550), (100, 1284404), (110, 1167640), (176, 729775), (200, 642202), (220, 583820), (275, 467056), (400, 321101), (440, 291910), (550, 233528), (880, 145955), (1100, 116764), (2200, 58382), (4400, 29191)]