128901920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1621}}^1$

素因数の和:1714

約数の個数: 96

約数和(自身を含む): 353154816

約数和(自身を除く): 224252896

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 71, 80, 112, 140, 142, 160, 224, 280, 284, 355, 497, 560, 568, 710, 994, 1120, 1136, 1420, 1621, 1988, 2272, 2485, 2840, 3242, 3976, 4970, 5680, 6484, 7952, 8105, 9940, 11347, 11360, 12968, 15904, 16210, 19880, 22694, 25936, 32420, 39760, 45388, 51872, 56735, 64840, 79520, 90776, 113470, 115091, 129680, 181552, 226940, 230182, 259360, 363104, 453880, 460364, 575455, 805637, 907760, 920728, 1150910, 1611274, 1815520, 1841456, 2301820, 3222548, 3682912, 4028185, 4603640, 6445096, 8056370, 9207280, 12890192, 16112740, 18414560, 25780384, 32225480, 64450960, 128901920]

約数ペア:

[(1, 128901920), (2, 64450960), (4, 32225480), (5, 25780384), (7, 18414560), (8, 16112740), (10, 12890192), (14, 9207280), (16, 8056370), (20, 6445096), (28, 4603640), (32, 4028185), (35, 3682912), (40, 3222548), (56, 2301820), (70, 1841456), (71, 1815520), (80, 1611274), (112, 1150910), (140, 920728), (142, 907760), (160, 805637), (224, 575455), (280, 460364), (284, 453880), (355, 363104), (497, 259360), (560, 230182), (568, 226940), (710, 181552), (994, 129680), (1120, 115091), (1136, 113470), (1420, 90776), (1621, 79520), (1988, 64840), (2272, 56735), (2485, 51872), (2840, 45388), (3242, 39760), (3976, 32420), (4970, 25936), (5680, 22694), (6484, 19880), (7952, 16210), (8105, 15904), (9940, 12968), (11347, 11360)]