72163840

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{4027}}^1$

素因数の和:4057

約数の個数: 80

約数和(自身を含む): 197790912

約数和(自身を除く): 125627072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1792, 2240, 2560, 3584, 4027, 4480, 8054, 8960, 16108, 17920, 20135, 28189, 32216, 40270, 56378, 64432, 80540, 112756, 128864, 140945, 161080, 225512, 257728, 281890, 322160, 451024, 515456, 563780, 644320, 902048, 1030912, 1127560, 1288640, 1804096, 2061824, 2255120, 2577280, 3608192, 4510240, 5154560, 7216384, 9020480, 10309120, 14432768, 18040960, 36081920, 72163840]

約数ペア:

[(1, 72163840), (2, 36081920), (4, 18040960), (5, 14432768), (7, 10309120), (8, 9020480), (10, 7216384), (14, 5154560), (16, 4510240), (20, 3608192), (28, 2577280), (32, 2255120), (35, 2061824), (40, 1804096), (56, 1288640), (64, 1127560), (70, 1030912), (80, 902048), (112, 644320), (128, 563780), (140, 515456), (160, 451024), (224, 322160), (256, 281890), (280, 257728), (320, 225512), (448, 161080), (512, 140945), (560, 128864), (640, 112756), (896, 80540), (1120, 64432), (1280, 56378), (1792, 40270), (2240, 32216), (2560, 28189), (3584, 20135), (4027, 17920), (4480, 16108), (8054, 8960)]