18142720

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1$

素因数の和:415

約数の個数: 80

約数和(自身を含む): 45912240

約数和(自身を除く): 27769520

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, 373, 380, 512, 608, 640, 746, 760, 1216, 1280, 1492, 1520, 1865, 2432, 2560, 2984, 3040, 3730, 4864, 5968, 6080, 7087, 7460, 9728, 11936, 12160, 14174, 14920, 23872, 24320, 28348, 29840, 35435, 47744, 48640, 56696, 59680, 70870, 95488, 113392, 119360, 141740, 190976, 226784, 238720, 283480, 453568, 477440, 566960, 907136, 954880, 1133920, 1814272, 2267840, 3628544, 4535680, 9071360, 18142720]

約数ペア:

[(1, 18142720), (2, 9071360), (4, 4535680), (5, 3628544), (8, 2267840), (10, 1814272), (16, 1133920), (19, 954880), (20, 907136), (32, 566960), (38, 477440), (40, 453568), (64, 283480), (76, 238720), (80, 226784), (95, 190976), (128, 141740), (152, 119360), (160, 113392), (190, 95488), (256, 70870), (304, 59680), (320, 56696), (373, 48640), (380, 47744), (512, 35435), (608, 29840), (640, 28348), (746, 24320), (760, 23872), (1216, 14920), (1280, 14174), (1492, 12160), (1520, 11936), (1865, 9728), (2432, 7460), (2560, 7087), (2984, 6080), (3040, 5968), (3730, 4864)]