161621280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{112237}}^1$

素因数の和:112258

約数の個数: 72

約数和(自身を含む): 551537532

約数和(自身を除く): 389916252

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 112237, 224474, 336711, 448948, 561185, 673422, 897896, 1010133, 1122370, 1346844, 1683555, 1795792, 2020266, 2244740, 2693688, 3367110, 3591584, 4040532, 4489480, 5050665, 5387376, 6734220, 8081064, 8978960, 10101330, 10774752, 13468440, 16162128, 17957920, 20202660, 26936880, 32324256, 40405320, 53873760, 80810640, 161621280]

約数ペア:

[(1, 161621280), (2, 80810640), (3, 53873760), (4, 40405320), (5, 32324256), (6, 26936880), (8, 20202660), (9, 17957920), (10, 16162128), (12, 13468440), (15, 10774752), (16, 10101330), (18, 8978960), (20, 8081064), (24, 6734220), (30, 5387376), (32, 5050665), (36, 4489480), (40, 4040532), (45, 3591584), (48, 3367110), (60, 2693688), (72, 2244740), (80, 2020266), (90, 1795792), (96, 1683555), (120, 1346844), (144, 1122370), (160, 1010133), (180, 897896), (240, 673422), (288, 561185), (360, 448948), (480, 336711), (720, 224474), (1440, 112237)]