181281280

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3727}}^1$

素因数の和:3769

約数の個数: 80

約数和(自身を含む): 457649280

約数和(自身を除く): 276368000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 608, 640, 760, 1216, 1280, 1520, 2432, 2560, 3040, 3727, 4864, 6080, 7454, 9728, 12160, 14908, 18635, 24320, 29816, 37270, 48640, 59632, 70813, 74540, 119264, 141626, 149080, 238528, 283252, 298160, 354065, 477056, 566504, 596320, 708130, 954112, 1133008, 1192640, 1416260, 1908224, 2266016, 2385280, 2832520, 4532032, 4770560, 5665040, 9064064, 9541120, 11330080, 18128128, 22660160, 36256256, 45320320, 90640640, 181281280]

約数ペア:

[(1, 181281280), (2, 90640640), (4, 45320320), (5, 36256256), (8, 22660160), (10, 18128128), (16, 11330080), (19, 9541120), (20, 9064064), (32, 5665040), (38, 4770560), (40, 4532032), (64, 2832520), (76, 2385280), (80, 2266016), (95, 1908224), (128, 1416260), (152, 1192640), (160, 1133008), (190, 954112), (256, 708130), (304, 596320), (320, 566504), (380, 477056), (512, 354065), (608, 298160), (640, 283252), (760, 238528), (1216, 149080), (1280, 141626), (1520, 119264), (2432, 74540), (2560, 70813), (3040, 59632), (3727, 48640), (4864, 37270), (6080, 29816), (7454, 24320), (9728, 18635), (12160, 14908)]