128347120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13259}}^1$

素因数の和:13294

約数の個数: 60

約数和(自身を含む): 328025880

約数和(自身を除く): 199678760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2420, 4840, 9680, 13259, 26518, 53036, 66295, 106072, 132590, 145849, 212144, 265180, 291698, 530360, 583396, 729245, 1060720, 1166792, 1458490, 1604339, 2333584, 2916980, 3208678, 5833960, 6417356, 8021695, 11667920, 12834712, 16043390, 25669424, 32086780, 64173560, 128347120]

約数ペア:

[(1, 128347120), (2, 64173560), (4, 32086780), (5, 25669424), (8, 16043390), (10, 12834712), (11, 11667920), (16, 8021695), (20, 6417356), (22, 5833960), (40, 3208678), (44, 2916980), (55, 2333584), (80, 1604339), (88, 1458490), (110, 1166792), (121, 1060720), (176, 729245), (220, 583396), (242, 530360), (440, 291698), (484, 265180), (605, 212144), (880, 145849), (968, 132590), (1210, 106072), (1936, 66295), (2420, 53036), (4840, 26518), (9680, 13259)]